I would think it's just the first one. Found another strength attacker at a lower relic level who only had 15 Mastery, and the stat boosts were exactly 1/3 of the r7 boosts. So 90 Mastery should double the bonuses.
1170 damage on JKA with crit damage set and 6-dot triangle amounts to around 6,800 additional damage on a crit from basic. A little over 10,000 more damage if he had offense up. However, under JML lead with the other offense bonus and the crit damage up from the ultimate, this means JKA is doing an additional 17,922 damage on a crit from his basic (with offense up). If he also had Master's training from GMY, the additional damage now becomes 22,000.
+90 armor penetration takes him from 290 to 380. How that affects damage mitigation depends on the armor of the enemy, but I'll take it.
Edit: So I forgot about JKL. Putting Jedi's Will on Anakin will increase the crit damaged gained just from the doubling of Mastery to 24,000.
I did the total damage calc for my R7 Anakin assuming post-ultimate JML lead (including the Crit Damage Up), Offense Up, Master's Training, and Jedi's Will: 192,182 on basic, not counting damage variance or defense, but he'd have 380 armor penetration. So a really high armor character at around 65% would only be reduced to 55.5%. So like a Malak would only take 85,521 if you land the crit. But any character with below 37.4% armor would receive full damage.
