Boredd69 you say that hands-free is important and I agree, but you also say the problem with the Handy is it's too light and you have to fight the momentum of the motor - but this isn't a problem when using it hands free. So I think maybe you need to choose either big heavy + handheld or small light + hands-free.
Expecting the user to clamp the device to something might be a big ask, in terms of attracting mainstream use. Women like dildos and vibrators because they're so discreet - if they had to secure their toys to a heavy object then they would be more of a niche product. The physics in the male stroker is something of an obstacle and it might take a generation before there's a breakthrough solution.