I have a problem with my feet and my fins. it seems that every single fin i use is destined to chafe me booties or no booties. i can say this because every single pair of fins i have used for a long duration has put some hole in my foot (different locations for different fins). now my new picasso BT's are doing the same. I once heard from a med student that alcohol thickens your skin (thats external application, not internal absorbtion). has anyone ever tried this? any other options?