I meant to say I wonder if sometimes I'm shooting into the fat layer, and that would account for the difference in cycles. I'm going to experiment more with shooting sites.
maybe it's semantics, but I don't think cats have sub-q fat? my dim memories of biology say only people and a few others (pigs & whales?) have a fat layer. I don't know a lot about it, lol! and it's probably irrelevant could be shooting into whatever mystery cat inner-goo instead.... probably not, but I think varying spots is a good idea regardless, seems like some have gotten better results that way (though could be coincidence, hard to know)
sounds like you have a plan, hope she is doing well!!!