Flamingcloud

As I expected not remotely accurate.. Spamming with autohotkey got me 55.55 bolts in 2 minutes, not spamming using quartz got me 52.28 bolts. Spamming without autohotkey got me 55.55 bolts. Perfect world is 55.8 bolt(tooltip reads 2.15 cast time) so I have an effective cast lag of 0.01, which is probably smaller than the margin of error in my 2 minute test (casting starting no perfectly on time, and me not gauging the fractional shadowbolt properly).

Conclusion: Spamming via either method is the best, but using autohotkey means your finger doesn't get sore.

Edit: my actual cast time is 2.153 when calculated out without chopping, so 55.73 shadowbolts would be perfect cast. Putting the macro (with sleep 0 tested only) at 0.0072seconds cast lag. A test at 10-15 minutes would become far more accurate for comparing the three methods, but I am not willing to do the test.