Bone breathing

During Bone breathing I like to add perineum power, just easy squezing the
perineum and anus. But in the instructions for the exercises in master Yudeloves book there that is not a part of the bone breathing.

What do you think is it:

1 Better to do it without using perineum power
2 You can do it either way
3 Perineum power good to add to this exercise beacase the energies will be stronger.

Sometimes I do bonebreathing after I have done testicle breathing, and then when I do perineum power I uncounsiously add the lifting of the testicles, and that feels wrong to me, beacase I got a bad feeling like stagnant energy in the testicles. But this part I think I can avoid now when I am aware of it, I have recognised it a few times during my last practise sessions.

Bone breathing feels good to me and I think it generates some heat to my otherwise wery cold sensitive body.

SD