It's been 4 or 5 years since I discovered these toys and I want to share, for the benefit of some of the newbies with high expectations, a change that happened recently.
And that change is I no longer get hard whilst riding and I used to. It works as required at other times (without any pills). I still have good times but it seems I have made the separation between riding and sexual arousal. Also I can go weeks without riding even though I feel the desire for one, so the craving stage and possible unhealthy addiction consequences seem to have passed.