The gelcaps melt pretty fast, lol. You have to have dry hands when you're filling them or they get all sticky.
I've done 4 flushes using ES in gelcaps and have had success every time.
BTW, I once got the caps at a drugstore but the bag had been kicking around for awhile (it was dustly) and the druggist said she didn't intend to order more. (Naturally!! Wouldn't want people making their own potions now, would we. Grin.)
On the other hand, my health food store always stocks them - sells them in bags of 1,000 for next to nothing.