PB2
I have seen posts from quite a few men who struggle to get going with the pump. As Lyn has said just take your time to perfect a technique that works for you. Several men say they do not use the rings at all. I guess it is all down to what works and what feels comfortable for you.
As for the radicals trial well you have still got plenty of time to think about that. 22 weeks post surgery is the deadline date.
I would do a bit of research first (there is a radicals trial.org Web page) if you think you are eligible and might want to join it ask what your consultant thinks when you see him.
Things you may want to consider ...
The RT/HT additional treatment brings with it more side effects, albeit temporary, if your surgery appears to have done the job would you want to subject yourself to that?
There have been some earlier trials in USA that have had improved remission rates for the Men who participated, however they were small numbers and started over 5 years ago. The increased awareness, earlier diagnosis and improved surgical procedures could have contributed too.
I'm sure someone who is already signed up or who has considered it will post for you soon.
My very best wishes
Xx
Mo