Aneros and obesity

I’m not new to anal and prostate play. I’ve been at it for over 20 years now and had a few orgasms from penetration.

I also own a Pure Wand and while I produce loads of precum with it, it never quite got me over the edge.

When it comes to aneros I never got anywhere. I’ve had a helix (I think) for years now and a progasm for a few months.

I’m starting to think my weight might prevent me from enjoying it. Is it possible that there’s not enough pressure on my perineum due to excess tissue? I can hardly feel anything from the tab.

Any experiences?