The rotation got quite long now before it repeats after the somewhat easier one in 5.x
I can see why it throws off some people though as it involves some stack building after your initial burst. As soon as you hit the second bloodfest, that's where you can use your hypervelocities more often and then you reach back to the bloodfest+no mercy alignment and repeat from there.

Maybe it could work if double down was a continuation attack from fated circle that'd cost an additional catridge but I guess we'll have to see after potential 6.05 changes...