Currently you cannot hide ICC25 hardmode gear but still show the exalted ring. Additionally you cannot hide ICC10 hardmode gear while seeing TOGC gear.
Being able to do so would be nice as I couldn't care less about gear which is not available yet.

The spreadsheet.

Well, it can also be an issue if your Aimed Shot is stronger than Chimera due to ArP and the Barrage talents. By dislocating the sync they otherwise have you might just end up pushing Aimed back now and then. The loss of that shouldn't be too great, so if the loss you see is slight (50-60 DPS) then it might be because your Aimed Shot is strong.

Top end Hunters often use glyphs as consumables. Meaning they stack up with perhaps as many as 5 different glyphs and switch depending on the fight. Chimera is obviously superior on high mobility fights, while normal glyphs such as Imp Hawk or Steady Shot are much less valuable.

If none of that fits, then there might indeed be an issue, but since it has worked so far I am reluctant to believe it as of yet. I'm sorry I can't check it myself, not being able to use the spreadsheet from this computer.

From time to time, I compared actual dummy test results with spreadsheet calculations. For doing such calculation, I should do some tweaks on my/pet talents and settings, etc.

Meanwhile, on Overview tab, the spreadsheet allows to choose PTR 83 dummy as a target. Since PTR 83 dummy is a machine, Improved Tracking would not be applied, but there's no differences in total DPS when I change my target to PTR 83 dummy.

It would be rather convenient if Imp Tr would not be appied when the target is a dummy. Not a big issue, though.

Except the spreadsheet is still giving you that bonus when you switch the target to the test dummies, which is mechanical and NOT one of the types you should be getting a bonus for but are in the spreadsheet.

There is a separate field on the Settings tab for the target type though (humanoid, mechanical etc).

The sheet assumes you are attacking a target which benefits from improved tracking. If you want to simulate attacking a target that doesn't, remove the 5 points in the talent. It will give a warning that the spec is incorrect, but you can ignore that since it's purely a cosmetic warning.

@Baklava:
I have been looking into this. Using my default (own) MM profile I get, without Chimera glyph:

Serpent Sting	1	359,79
Silencing Shot	19	18,94
Rapid Fire	4	89,95
Chimera Shot	36	9,99
Kill Shot	8	44,97
Aimed Shot	36	9,99
Readiness	2	179,90
Steady Shot	127	2,83
Total	233

DPS done: 10262,43 (I removed my HM glyph for this)

With the glyph I get:

Serpent Sting	1	359,74
Silencing Shot	19	18,93
Rapid Fire	4	89,94
Chimera Shot	40	8,99
Kill Shot	8	44,97
Aimed Shot	34	10,58
Readiness	2	179,87
Steady Shot	118	3,05
Total	226

DPS done: 10263,94

As you can see you gain 4 Chimera Shots (the CD goes down to an average of 9s compared to 10s as expected), but it pushes off 9 Steady Shots and 2 Aimed Shots. Why? Well, the sheet will wait up to 0,8s for a shot to come off CD. With the shorter CD of Chimera Shot it means a proportionally greater time is spent waiting (and not actually casting).

If I reduce the time to wait to 0s then I get the following:

Without Glyph

Serpent Sting	1	360,43
Silencing Shot	19	18,97
Rapid Fire	4	90,11
Chimera Shot	34	10,60
Kill Shot	7	51,49
Aimed Shot	34	10,60
Readiness	2	180,21
Steady Shot	136	2,65
Total	237

Total dps: 10194,92

With Glyph:

Serpent Sting	1	359,06
Silencing Shot	19	18,90
Rapid Fire	4	89,77
Chimera Shot	37	9,70
Kill Shot	7	51,29
Aimed Shot	33	10,88
Readiness	2	179,53
Steady Shot	133	2,70
Total	236

Total dps: 10277,87

This time almost no shots are lost (the 1 difference is due to the slight difference in fight length produced).

Running into a bug with the current version of the spreadsheet. When I download a fresh copy of the spreadsheet and load gear from armory it opens a Microsoft VB debugger window with Call OrderGems highlighted. If I exit out of the debugger and load gear again it loads everything without any errors. It's only the first time on a fresh spreadsheet.

Here's a screenshot of the debugger if it helps. Using Excel 2007 on Windows 7.

I was about to post exactly this. That is the exact same highlighted line that I am seeing in the debugger as well.

I am using Microsoft Office Excel 2007 on Windows Vista 32-bit. My Character is named Zoran on US-Gurubashi.

If I can provide any more information to you, let me know.

Edit - i would like to add that simply closing the debugger and continuing on using the spreadsheet somethings gives wacky calculations, so it isn't simply a nuisance.

Actually according to available data neither of them is slotted correctly in the sheet. The heroic is meant to have 3 slots (not the two in the sheet) and the normal is meant to have 2 slots (not the three in the sheet).

I'm using The World of Warcraft Armory .

There's a bug in the spreadsheet in that it allows crit chances of greater than 100% and factors them in to damage. For example, with the right gear, Kill Shot for a SV hunter can hit over 100% (I got it to over 103% without trying much) and the spreadsheet calculates Kill Shot's total damage based on that, giving an inflated value. I came across this while trying to find out at what point crit can get so high that AP replaces Agility as the preferred gem choice for SV, as the crit from Agility is no longer helpful.