I was on the phone today with Jay in NH from Autobody Specialists talking about benders and flaring tools and he mentioned that mastercool kit too. We were talking stainless bending/flaring stuff mostly since I'm in love with it after doing this brake system in stainless I'll probably start doing my fuel systems in it as well.
Anyone using this Mastercool kit Greg has recommended or this other one I posted? The mastercool kit looks like it does a whole lot more for the the same price plus right under the link you posted you can get the 37* dies for a little bit more. Looks like a good package!