At home we have (mom, dad and me) +/- 5 sets put together. My gamer is a set of TaylorMade RAC irons. My previous set is a Dunlop rip on an Ernie Els set from the late 90's. That has passed down to dad. His old set is a Dunlop from 1986, which now sits as an emergency set at my folks place for whenever somebody drops by and needs it or if I visit and don't carry my own clubs. Then, my mom has a half set (i forget the brand). Over and above that we have a whole bunch of extra clubs that together would probably be enough to make a decent half to full set (i know of an SW, 1 iron, 6 iron and some woods).
Yes, I am currently playing an 60* MD3 with 10* of bounce. I ordered the XLow 3* mostly because of the grind. I do all kinds of crazy stuff with opening and closing my 60* so having a very shallow grind is very important to me. Also I hit really well in all the situations I put it through during my fitting.