Thanks for the vid Peter and I agree bf should give a clearer explanation for numb skulls like me. It just feels like something is under hand when you can withdraw a couple of quid from a market and close on a thousand appears as in my vid with no inplay delay as my bets are subject to before reaching the market. I'm not sure if your vid was inplay or not Peter?
On your vid in the first 1min or so, when you enter 10quids, why at 1.54 does some money keep arriving also on your side of the book the second you enter? I presume that's also related to xmatching but I can't see how as its offering on the same side of the book. Anyway, I find for some sports them chunky bots to be very helpful, whether real or not!

D