I dunno Pete. For genuinely and obviously rare things I think auctions will probably raise the seller the most money, even after fees, but for run of the mill things you might do ok or you might get your trousers taken down
It might be the worst of all worlds. I thought most of what went at Stroud went fairly cheap so far as the hammer price went, and if you were the seller you’d be disappointed, but if you were the buyer, after fees, postage and (if post war) rfd fees, you still weren’t really getting a bargain