Vampush for FunSR1?

I’m looking for a new onahole for my FunSR1. After digging around a bit, I found the Ride Japan Vampush Onahole. It has good reviews, but I’m unsure of the shaping. I don’t know if it will fall out of the FunSR1. Do any of you have experience with this one or can offer insight? Thanks! :smiley:

Here’s a link:

Did you end up getting it? If so how’s is it? I’m looking at this one to replace my worn Puni Fuwa Mafia since it’s similar.