I love these guns, embarrassed to say I have six of them. Two standards, one MKI, two MK II, and a MKIII
MKII is the sweet spot with the bolt hold open and 10rd mags and without the dang mag safety that the mkiii brought to the table. Which is a cheap fix, I removed it on my mk iii.
I shoot my bull barrels better than the tapered.
Both standards I bought were label MKI at the stores I found them in, they didn't know the difference.
Lucked up on the gorgeous standard a while back for 200 bucks