I always use my cc when using pp..the reason Is.. if something does go wrong I dont have to rely on PP to correct the issue. PP only 100% covers you with Ebay transactions I believe.
I havent had any issues as far as dealing with the dealers here or any rep purchases In general. But I will keep my eye open for any unusal activity/charges going on.
Before you mention the dealer in question...I would contact one of the crew members or admin for advice.
Thanks for sharing your recent experence with us.
Mike