Ryan, I like that depth gauge. There were a few guys at the "real" workplace that used things like that. I even designed and had fabricated some "special" depth setting tools. For me, the tape works just as well. Sometimes I use a 4" combo square. Kinda like the contractors house - nothing like the houses he builds.
The depth , or what we call "stick out" is not critical. It just needs to be there.
Glen, once I have a process, I will be advertising these on Etsy, and maybe EBAY. For sure on my web store. I really want to move away from hand shaping. I like shaping by hand also, but it's not cost effective. My resolution is to get Leos Workshop up to speed. That means I want to sell and make money doing so. I hope that does not sound too capitalistic, or selfish, or lazy or anything like that. My little business needs to make money or it's not working correctly. That is the desire of my hobby. ALSO - I want to produce something is good and desirable. That's NOT to say that hand done work is not good or desirable - in fact it is. The problem in doing it for a home based business is that is does not give a very good time to profit ratio. If I hand shape, the draw pulls may need to be priced at $75 - $100 each or more.
I like hand making stuff. I made a half hull sailboat model that is hanging on my office wall. I must have spent 100 hours on it. At $1.00 per hour that would be $100.00 Maye it would sell, but that is a waste of time, and I would be better off welcoming at Walmart. At min wage, for a highly crafted item that would be $1500 and would not sell, even at a pitiful pay rate for a skilled effort. So, I am shooting for a labor rate that is commiserate with the skill sets used to produce the item. I don't work at min wage.
I will be posting more as I develop my process.