Woodie, if you really want to go the fluorocarbon route check this one out. Invisiline from Sufix- " Invisiline is nearly invisible in water, sinks faster than nylon, with high shock strength and exceptional abrasion resistant properties" comes in weights starting @ 4 lb. then 6-8-10-12-15-20 and all the way to 425 lb. test, for those really big line-shy nates!!! W-site is www.sufix.com or ph. 1-800-554-1423....Man I should go into sales!!