You are welcome. Happy I was able to help 
I tested two more tight Onaholes so far. These are:
Onahole Review - Urethral Fuck Twist Otokonoko - Review - EroScripts and
Onahole Review - Cute Dragon Impregnated - Review / Device Reviews - EroScripts
Otokonoko works, but as mentioned, Handy 2 reduces stroke length a bit. When I hold it manually, it doesn’t reduce the stroke length as much. But I don’t really want to hold it anymore ^^ Hands free is so much better
Cute Dragon doesn’t work at all. But it’s also a very firm Onahole. A tight Onahole can work, if it’s not too hard. If it’s softer, the Handy 2 can move it easier. If it’s tight and the material is form, then the Handy 2 has a hard time moving it.