Eric, the only brand I have used is Humbrol's Maskol, as that was the only game in town where I bought supplies. I have never used it for chipping, only for those pesky little corners and rounded surfaces that the yellow tape will not cover. I still have to become friends with it, but it serves its purpose.
My new supplier does have other brands, and I may go there to get some, but no plans yet. One day I shall be doing some chipping with something, and tha Maskol may go for a trial, but so far I've no experience with that use of liquid masks.
