I Like the set up also. It appears to me that the button operates a electric diverter valve. So to operate the front aux you have to press and hold the button and engage either the tilt or the lift, then release the button to resume normal operation. I have been (lightly) trying to design a front aux that utilizes the high and low buttons on the loader control lever. Yes this would mean that in order to switch from high to low you would have to remove your hand from the control lever to use the switch on the right control pod but I think this would be a small price for not interupting the lift or tilt (if I am correct on how TV's set up works. I posted a question months ago about which hi/lo switch everyone uses and it came back that almost everyone used the loader control lever switches. I like the position of TV's valve due to the be ing up out of harms way, but don't like seeing it. I was thinking of building a bracket to mount the diverter valve under the tractor on the inside of the right hand loader brace that goes back to the rear axle. I would definately make some kind of shield for it to keep dirt and mud being flung by the front tire. If I were to build the skid plate like kcbarnes built I'd be halfway there by now. I know how I want to do the diverter valve, I just need to do more research and find one that will suit my application, but I've got bigger fish to fry, bigger bucks to hunt, (read more important projects to worry about) if you know what I mean. I'll keep you guys posted when I finally do!