As far as I see red hunter with u22.2 changes, this is what I came up with:
Focus skills:
penshot obviously needs to be used each 10s for its huge buffs (+10% critchance (and -5% physmits)).
exsanguinate is now a really good dot and can reliably be used each 20s, therefore, bloodarrow needs to be used at least each 20s.
merciful shot deals nearly as much damage as upshot and with 20s CD usually costs just 5 or maybe 4 focus and such is nearly double as efficient for damage/focus than upshot.
Upshot still deals good damage.
Induction skills:
Heartseeker has a huge dot. needs to be used whenever available.
Barbed arrows dot is still clearly worth it. should be used each 10s.
swift bow deals a lot of damage. still better with instantproc from qs than without.
qs is very fast and deals okayish damage. it still makes inductions better if used at least each 6s (stacks three times) and gives instantswiftbowprocs.
still, using two induction skills afteranother has a gap between them and should be avoided.
resulting "rotation":
usually, rotating an induction skill with a focus consumer should be tried.
The focus builder should be hs when possible, BA each 10s, SB with procc (maybe even without?) or QS.
Focus consumer should be PS each 10s, BA followed by exsang each 20s, otherwise mercshot>upshot.
Am I wrong?