I use my 30 to cut grass, move a little dirt, and occasionally move my pontoon boat (it is a little heavier than the Fergy)- all on level ground. I"m building a boat ramp and would like to be able to launch and retrieve the boat with the tractor. The brakes work now that they have been relined but I"m convinced they wouldn"t slow the boat on the ramp. They are just too weak (I"m certainly not too light). I"ve been toying with the idea of replacing the drums and shoes with discs and calipers (and master cylinders) and there appears to be enough room if I can fabricate a mount for the calipers. Another thought is to add a couple of pieces to the existing linkage to multiply the force exerted on the shoes (at the expense of a longer pedal travel, unfortunately). Anybody done either of these and succeeded (or failed)?