So I bought a t-rex stand off ebay. The pins that came with it fit, but they only went in about 1 in on either side. I emailed the guy, who was very nice. He asked for the measurements of the pins he sent. They were 28mm and 30 mm according to my calipers. He said he'd send some new pins, which he did and, though they're a little smaller, they still won't go all the way in. So I'm having them machined to fit. My question for those that have a rear stand (any brand) with pins that fit a 1050 S3: what size are the pins you have? I did a search and saw a couple of different measurements.