Originally Posted by
atomic sagebrush
Honestly, it is a concern, and a chunk of my blue sway opposites were in cyclists (oddly, I've had a small handful of pro cyclists and BMX bikers among my blue swayers - 5 or 6 and several did get opposites)
Weights cannot counteract it, because it's not testosterone related, it's the actual effect of the bike seat on his genitals, it's believed. I would get him a seat with more padding than the standard and hopefully he'll keep the spandex on the looser fitting side.
Obviously, it falls into one of those categories of "outside our control" so we do the other things we can do and sway in different ways.