I've got two, a fiberglass and a full Kevlar. Michel basically said that there's no real benefit to the mixed glass and Kevlar since it doesn't save that much in terms of weight. Michel is a gentleman and a pleasure to deal with even if his response time to communication isn't necessarily the fastest.
I'm a skeptic of the need for a mold. My first one I did the mold. My second one which was two years later (and was at a time that the CAD was particularly weak, so I went full kevlar for about $2.50 USD), I didn't do the mold, he said he remembered which shell I was in and could figure it out. They fit pretty much the same.
I wound up getting a Coveted recently based on a few basic measurements and a few pics and the fit is actually even more dialed in than my Protechsports. Things that make you go hmm. The Coveted is my go to these days, I just like it a little better. No dis on Michel or his masks, it just fits a little better and has been a little bit better on the numerous headshots I've gotten (all during warm up, naturally).
The one thing I don't like about the Protechsport is the foam. The black EVA degrades very, very quickly and was flaking off after less than a year or a year and a half of playing once or twice a week. I had to get it repadded as a result. Yes it's soft and it doesn't stiffen up like Rubatex, but it is not at all durable.
At the price point, you can't beat Protechsport, particularly if you're not in a hurry!