I've been looking for another T36, have had 2 for a while with no problems. Weaver has the T36 XR NOT AO, SIDE PARALLAX ADJUSTMENT scope on sale at $379 with a $30 rebate. Couldn't find a review, bought it anyhow, shot it today, 26 cast and 12 5 shot jacketed 100 yard groups.
The W and E turrets are not graduated, no marks. It reads, ex, "0", but you don't know which "0" it is. With 48 min of adjustment, the "0" crosses the fiducial line 6 times from all down to all up. This is a PITA, but easily overcome and lived with.
The parallax set for my eyes reads between 100 and 150-not a big problem, but my Lyman STS scopes read on the money, made in the 50's.
Focus. Ocular was screwed all the way in. Instructions say loosen the lock ring and turn 1/8 turn, look at the sky to focus on reticle. BS. Has been BS since Lippershey. Eliminate parallax at 100 yards, look at anything at 100 yards, Turn ocular till it's in focus, adj parallax, focus ,repeat till the item is in focus and no parallax.
Clear as a bell, I shoot at 1 dot on the paper, adjust the scope to make groups at various points around the dot. My others, and this scope track very nicely. Everything works great, and lifetime warranty. I could send it back, but I'll keep it. If you can handle the lack of index marks, it's just fine.