Ordered the adapter on Wednesday. Arrived of Friday. Picked up this morning. I modified my bolt on Friday. Few hours on the dremel today, and a call to HiCal to verify some small points.
Friendly answer to all my questions. Very pleased with how I was treated - considering I am just a guy that was about to Bubba his SKS.
Back to my basement workbench with new knowledge in hand. Probably took 2 hours longer than it should have, but I attribute that to my (self-perceived) OCD. Grind - test fit - grind - test fit, repeat until satisfied. Lotsa measuring with dial gauges, plasti-gauge, and calipers (probably a little overboard).
Then ground out my stock to fit the adapter, got a nice, snug fit.
Wasn't happy completely with the fact that had a little bit of rattle, once installed. A well placed small piece of oil soaked leather tightened everything right up - no play in the adapter-to-receiver, now. (Might drill and tap a set screw into the forward arm of the adapter).
Tried mags. Pop-and-drop gold! Tried them all, just to be sure. Rounds feed freely, good ejection.
I was taking my case of surplus and pulling 5 from each stripper clip. Not any more! 10 round stripper clips like butter. Now I can load my other surplus ammo onto the empty clips in 5's for the CZ's.
In case you can't tell, I am HAPPY!
Worst problem I see is all of a sudden I have a desire to equip the rest of the SKS fleet, this way. Meaning more $ to Hi-Cal.
My name is Sunchild2071, and I recommend this mod (if you give a sh!t).