Damn, I don't even understand why there is any arguing about the numbers.
Here is my Counterstance testing
if you want to know where all the figures come from.
Plain and simple since some people aren't grasping.
Counterstance adds 45% counter.
99 Monk has a base of 12% counter.
99 Monk with 5 Counter Merits has 17% counter.(12+5=17)
99 Monk with merits using Counterstance has a 62% counter rate.(12+5+45=62)
99 Monk with merits, using Counterstance activated with Melee Gaiters +1 has 67% counter.
Melee Gaiters +1 add 5% counter.(67-62=5)
99 Monk with merits, using Counterstance activated with Melee Gaiters +2 has 72% counter rate.
Melee Gaiters +2 add 10% counter.(72-62=10)
As far as 99 Spharai,I don't think there is any actual testing, atleast none that I have seen. The 13% Counter number being thrown around is based on a linear increase from what we do know.
Level 75 Spharai= Enhances Counter= 5% counter
Level 80= Enhances Counter II= 7%
Level 85= Enhances Counter III= 9%
Level 90= Enhances Counter IV= 11%
Level 99= Enhances Counter V would then most likely be 13%
Ragnorak Crit Rate seems to have the same growth pattern and is 14% crit at 99, so Spharai 99 could also be 14%.