how important is the hole in the middle of the saddle (whatever it's called)? my top tube length has me stretching pretty far, which is fine, but can stress my..uh..tender areas on longer rides, even with a chamois and no matter how much i shift my weight to be on my sit bones. i picked up a selle italia flite fluid (which i can't even find much info about online), but that didn't really help. should i just sell the saddle and get a flite gel flow, or some other saddle with a hole/recessed center?