I once had a little stickiness with a cart from an earlier batch of 64T in my 814XL-S at 24fps, and a cart of Wittner 100D I used got stuck 1ft from the end of the roll recently, but other than that I've never had any sticking problems with Super 8 at all.
I mostly use Kodachrome 40 and Ektachrome 64T, and have shot quite a lot of cartridges this year so far. Batch 311 has run fantastically smooth for me, and I would trust Kodak stocks way more than any other repackaged 3rd party material.
I definately think it sounds like the camera, considering everyone else seems to be having success with this batch of film then I'd definately want to point the finger first at a 30 year old camera.