As per Mtn Molds web site, looks like he's about to start setting up shop, but somewhat limited production for a few months.
I have to say to me its worth the wait. The quality is great, for a much lower price than the other custom molds. Other custom molds are running about $200.00 for steel blocks - about double of Mtn Molds, for little difference in quality. I like the economical aluminum to try a certain shape and diameter, maybe when I settle on a preferred design I'll get a brass or steel version. But with the cheaper cost of alum. you can try several -- and they do last if looked after. I don't believe in banging on sprue plates to open up - use pair of pliers to swing open. For that matter tapping on handle pivot point to drop bullet should also be avoided.
Also don't preheat by dipping cold mold's corner in melted lead, to me that's a no-no. Preheat by carefully placing mold and handles on top of lead pot rim and gradually preheat for 15 - 20 minutes. I have yet to warp from heat any of mine and I do like to cast hot end of scale. Something I should really try to get is a thermometer for castng -- to keep consistency in lead temp.
Safe hunting and shooting.... Bob.