I have not liked the Seaguar AbrazX or InvizX, too much stretch and poor knot strength for me. I broke off lures just on the cast. I also tried Sufix Castable Invisiline and it was like Seaguar Invizx. I do like Berkley 100% FC and have now switched all FC to Sunline Super FC Sniper and have no complaints with it. I use 6lb, 12lb and 16lb lines. The Sunline Super FC Sniper has a much smaller diameter than Berkley 100%, though the Berkley seems to have somewhat better abrasion resistance and is not as limp.

Just my .02 cents

Mark