I'm trying to put weight on my underweight 11 year old gelding. He is QH/Arab. I can get the TC senior but they would have to special order it for me and is around $23 a bag:shock: but the other two are readily available to me. He drops a lot of feed (even though I just had his teeth done a couple weeks ago). He needs to gain maybe about 150 lbs. and muscle. Any experience with these feeds?