You will find with a good quality erection, the FR is not so pronouced, as already stated.
Lots of FR regularly, can lead to the skin being stretched, but this IMHO is not a bad thing, when you are on the path to gainis, becuase that excess skin will be filled out with new penis at some stage.
I used to use a condom inside the bathmate back in the days to reduce swelling, but now we have Silicone sleeves sold on the site, that have been made with QUALITY In mind, and I have x3 sleves from MoS which are TOP notch quality, none of this cheap shit you find everywhere else.
These silicone sleeves can be used in so many ways its sick, and I will be doing a thread next week on how effective they are. For example, you can use them with hangers of all types to helps with grip, reduce fluid with vacuum hangers or extenders, lengthmaster, pumping, and sizegentics if you prefer.
This leads me nicely to full prevention of FR, and to really concentrate all the energy in a session on future gains, and that is through SRT as DLD said, the
5x5x3 is the future now, and we have come on so far in the past 10 years with how we train the penis, that FR should become very minimal now.