Hi I bought a paddock stand brand new , I put it on my bike tightened it then pulled the bike up so I was of the floor. now looking at it , it looks to be leaning and the pin doesn't seem to fit as tight as I thought ( i can't pull out the pin once it's tightened), I measured the pin and hole and it's both 31.5 any ideas ???
Thanks Ben

what type or make of stand is it?

It sounds like the red one below.
The pin will not pull out when the locking O ring is tightened, but the pin on mine measures 30.9mm, the black one 31.5mm.

The bike does lean when on the red one, but it's useful to be able to wheel the bike on the the stand.

If yours leans too much, wrap 2 short lengths of split tubular pipe insulation around the right hand side of the stand, pretty poor, I know.

Even better and more stable for wheeled stand, place a 300mm length of 150 x 20 mm timber on the floor under the right hand side stand wheel, then pull the stand up on it. That worked on mine just now.