Helix Syn V

So I’ve been dabbling in prostate play for awhile. Recently picked up the Syn V. I’ve tried it a few times, attempting with and without the vibrations and I just don’t get that much pleasure. Nor sure if it’s too small or I’m not using my PC muscles proper but it just doesn’t seem to do it.

Any suggestions on different positions, whether you use vibration or not, use of patterns or techniques would be great.

Thanks.