Splitting timers is a nerf for DRG under those conditions. If you're going to split them, have . . .
Jump: 1min
High Jump: 2min
Spirit Jump: 1min
Soul Jump: 2min
Don't forget that we often combine 2hrs with high haste situations, so JA-delay will affect total damage as well. For each jump, we embrace a 1s delay, so if you're using four jumps during the 2hr, you already cut 4s from the delay itself. Give 1-2s for the ability as well (Assumes super fast macro smashing) and you're looking at 8-12s just using the first round of jumps. Quite frankly, an SP like Mighty Strikes would offer more during high haste for DRG. Not to mention, this 2hr doesn't work comfortably with our other 2hr since taking advantage of high haste and using jumps contradict each other.