Might the Progasm Jr miss my prostate?

I first got into anal play just a few months ago when I bought a [Lovehoney Rookie](https://www.lovehoney.co.uk/product.cfm?p=17779). Using that, I could find my prostate and it felt great, especially when using some of the stronger vibration patterns. But, it’s quite flexible, so often when I feel like I want it to put more pressure on my prostate, it can’t. It also slips out of place quite easily.

So I bought a Progasm Jr. It’s rigid, and the design means it’s not going to slip out. I’ve tried it a few times now and although inserting it is a more intense experience (due to the extra girth, I guess) and I enjoy the feeling of just having it in, it’s never really felt like it’s touching my prostate at all, no matter what I do with my PC muscles.

Is it possible that the Progasm Jr is the wrong size/shape for me? If so, any suggestions on what may be a better fit? Or am I doing something wrong?