I forgot that applying the second stack refreshes the first stack, so up to T7 is worth it, but not T8

To those interested, I did the math and at Tier 4 the formula changes to 6.34% AP + 4.96 * Level T4 has no bonus, T5 is 0.68% T6 is 1.36% T7 is 2.04% and T8 is 2.72% For example, at Level 50 with 1135 support power AND in Assault Stance (135% damage), the math for T7 is: (((0.0634 + 0.0204) * 1135) + (4.96 * 50)) * 1.35 = 463 per tick. T3 of the same assault power and in assault stance is 628 damage per tick.  At T8, the bonus would do instantly 905 damage. Considering the 8 second cooldown, and 10 second duration, T8 seems almost not worth it. T8 tick damage is 474.  So 474 * 4 (4 ticks in 8 seconds) = 1896.  You apply ripsaw again and instead of double stacking, it just deals 905 instantly.  So you miss the last tick of the first stack, and all 5 ticks of the second stack which is 2844 damage, plus the dot is gone, so constant damage is gone. Hell, even at T3, its 628 * 4 which is 2512.   It seems strange to ever want to go above T3 just to save one tick of damage...