1) what are the size restrictions on cranial? Is it possible to cranial somebody two sizes larger/smaller?

2) how well will whip/flail moves, specifically entwine/eyejab/lash/choke work with a svirf or mino (22-23 str, 19-20 dex)?

3) does size difference matter for crushing blow? Are there size restrictions? How reliable would causing blow and stun be with a svirf (22str, 20dex)?

Thanks!