Almost there, does this mean I need a shorter toy?

I started my Aneros adventure a little over 6 months ago and my first toy was the progasm. I was advised against it because of its size for beginners, but I had taken larger things up there before so I thought it was the right fit and I could just bypass the *beginner* sized toys.

However last night I had one of my best sessions yet. I felt like I lost full control of all my muscles (no crazy spasms though) and my anus was just automatically thrusting my Aneros for me and I was breathing heavily and uncontrollably. It felt like my Prostate was completely ‘defined’ and it was the only thing I could feel. However, amongst this pleasure, my Aneros just slipped out.

I can only assume that all this intense pleasure was only because my Aneros had worked it’s way out and was only half inserted during the pleasure. This finally convinced me that maybe I should get a shorter toy if my progasm actually isn’t hitting my prostate perfectly. I was thinking going for the classic helix? Thoughts and suggestions? Thanks guys!