Im a veteran of the ocau system, been trading there for years. I also have experience with XS and a little with kingpin now. Things id like to see different, are no 7 day rule, as sometimes you get replacement in rma and have replaced it in the meantime, and no heatware, i have one but have never used it.
And encouragement to post overseas at the buyers cost, it sucks when something comes up and the seller wont post to you, despite you paying for post