I've been using Corta-Flx pellets for my senior half-Arab gelding and since he's semi-retired it has kept him comfortable for daily life. However, recently I decided to try the Absorbine Flex+, again, they have come out with a pelleted form (he will not eat the powders, he just snorts into his dish and blows them all over the place, so I stick with the pelleted products). I ordered from KV Vet supply, they had a buy one month supply, get one free special; just ordered last week. Can't wait to see how he does on the new to him product.
Edited: I just checked my order, it was Country Supply that I ordered from, I was looking at something else on KV Vet (couldn't come up with a full order, so haven't ordered the one little thing from them yet).