Not knocking anyone else for it but I've never really got the whole taking your seat thing. Maybe a bit different if it's one of the old style ones but I just can't imagine what use i'd ever have for a single blue plastic seat. I'm at the back of the Gwladys so to be fair I have absolutely no connection to my seat because I've barely sat in the thing.
I sit in the Bullens on a wooden seat,
After weighing it up a few times and the combination of wood and iron it looks like I'd have to take a 5 seat section to make the removal job a lot easier,
Hacksaw, saw, hammer an chisel, wd40,
Then
get it out inconspicuously and back to car,
Or just buy a framed picture of the turnstyle