Don't get me wrong, I'm not saying that the big-timers were the ones who took the action last night but someone did. £500 isn't even a large bet to a lot of punters - not sure these days but in the WTFC days, the Coupon Time thread had many bets that were for more than that. I'm small-time but if I wanted to lump a £500 bet on, I'd probably look for a new site as they always offer incentives to join up - first bet matched, stake x amount and we'll give you y amount of "free" bets, etc. Even outwith that, the new account could have been someone who simply didn't have an existing account with whichever chump was offering 10/1.