Funny you say that...when I was a kid and first met Moe (I was 9 and got to shag for him...pretty cool) his irons all had the leading edge ground off on a 45*. I do have a prototype iron I'm testing, that is a Moe/TS version. I love the thing, but I'm not sure I want to get into the playing club market. Tough to compete with the marketing engine of TM, Callaway, Titleist, etc... I'll post some pics. It is presently in shipping. Just moved from Bend, OR to Phoenix, AZ. Running my schools and coaching in AZ provides more "usable" weather.
I've had a lot of folks say they added significant length with their driver. The marketing guys pitch the "30 yards" rubbish. Frankly that makes me ill. The reality is, if you deliver the club properly you'll hit it a helluva lot better and yes, you'll hit it farther. 30 yards?? Who knows.
Glad it helped with your overall yardage! That's great.
Hey, 77 is nothing to sneeze at. Way to go. Golf is damn hard and you should be proud of "double hockey sticks."