My mom used the HOTHER and it's got the round disk with the slot in it and a lever. I used to watch her tack her threads by flipping the lever up then back down so fast you'd almost miss it if you weren't watching.
My wife used her 538 which has a push button reverse/tacker again so fast you'd miss it if you weren't watching.
So neither or my mentors have any advise to share.
I think Charlee probably has the easiest idea. I'll just have to play with my stitch control nob till I get if figured out.
Joe