[Beaker]

Feeding hay first lets the digestive system start working before you feed grain, so that way the horse is less prone to colic. It's always been taught to me as well, that feeding hay first protects the stomach from acid when digesting grain, and protects the horse from ulcers. But hey, (no pun intended) your method seems to be working just fine! :-) If they're easily digestible, no worries. And actually, that seems like an interesting thing to try. If you don't mind me asking, how much does it cost you for a week's supply?
(Listen to me, I'm actually talking like I still have a horse! Old habits die hard, I guess) :-)

[PayNoAttentionManBehindCurtain]

Around here it's between $7-8 for a 50lb bag. Most horses need at least 100lb a week. Rocky get's right at 100, Rusty gets about 112. Harley got probably about 120lbs a week because he was getting used so much. You have to adjust for things like that.

Becky