I use a Hexy Fiber multi for my crosses with polyester mains. I tension the multi 5 lbs. higher than the poly. I figure I get more comfort this way, but I'm wondering if I'm missing out on some feel? Or is the reason to use syn gut crosses to come close to the performance of a poly full bed, with more comfort? Or both? I haven't tried syn gut crosses yet. Could someone tell me how there are and give me +/-?