I'm a rogue with maladath, but I'm trying to decide when I should use it. Weapon Expertise gives me enough to not glance on lvl 61 bosses, but I'll need maladath to reduce it for 63 bosses.

However running BWL last night, I noticed Discord Unit Frames report all bosses from Razor to Nef as lvl 61+++ so I didnt use maladath at all.

Is this a DUF problem or do the 63 level bosses not occur until deep into AQ/Naxx? We also downed the Instructor and I saw he was 61 (as reported by DUF)

Is DUF reliable or is there a site that shows the boss level?

Thanks for any help

+ Weaponskill reduces the damage lost on a glancing blow. It doesn't erase it completely in all situations. Even though it doesn't seem like you're gaining anything from wearing Maladath - I assure you that you are.

It shows them as 61+++ because boss lvls are hidden and there is no way to detect what lvl they really are.
When it was possible to see the boss lvls's however it was shown that they all were lvl 63.
And becasue of this it's generally excepted that all current end game bosses are still lvl 63 (resistence checkers have also shown this to be accurate, aka misses for casters)

bosses are either lvl 63 atm or the boss flag makes them player_lvl+3 to anyone, any level (something I thought but most likely isn't so ... can't check till TBC)

My assumption is that the boss flag is just a boolean toggle to mask the real level. You could, for example, create an npc at level 25 and mark it as a boss to have it show the skull to everyone.

Every 40-man raid boss in the game is level 63 -- use your +skill stuff.

While they may be 63 they may have different stats.

Patchwerk & Loatheb for example are 63 with 310 weapon skill, they never crush you in battle, but your raid still gets the 40% glancing blow penalty.

Ragnaros seems to be lvl 64 or at least modified in some way.

A friend of mine is a hunter and had enough +hit gear to have exactly zero misses in an entire MC clear. During the 3 minutes against ragnaros he noticed several misses (like 5% or so, I forgot the exact number).

...did he put on any FR gear for Ragnaros? :P

I used to have a mod which displayed a mobs defense. Onyxia and MC bosses displayed as having 315 defense which is what you would expect for lvl 63.

The other night in Naxx, my game crashed, and when I came back, a bunch of things were all messed up. My character model wasn't displaying (only saw my little shadow), all the mobs were named "Unknown" instead of what their names were supposed to be, and finally, Maexxna was showing up as "Unknown, level 63" (no skull).