Are Improve hearing and eyesight truly B type only?

[Subeternal]

I have to make sure of this before I start trying different listening permutations. If IYHS and IYES really are B types it means I have much more flexibility than I had previously thought.

My curiosities in question are to see how IYHS might work in conjunction with the HGH sub or MHS.

[Shannon]

They are Type B/C hybrids. If they're marked Type B, I have to change that. Thanks for bringing that up.