I think I must've been overthinking it and looking at it when I was tired
I'll have another proper look tomorrow when I've got a day off work and go for it
How quickly do people normally go through the PA offers? A couple a day? A couple a week? Blast through loads at the weekend? And now I've got a bit of money spread through accounts, am I best to withdraw from (some of) the bookies and put the money in the exchanges? I'm still getting my head around the liability - so basically if say your liability is £50 and your exchange bet loses, you lose your exchange stake and the liability? Sorry for still being dim, I guess some people grasp MB straightaway and some (me ha ha) don't
You ONLY lose the liability.
Basically look at it like this. Your 'stake' at the Exchange is the amount you would gain of the bet loses at the bookmaker. If your bet wins at the bookmaker you lose the liability.
Basically when you place a Lay bet, you are now playing the role of bookmaker, not a punter. You're saying to someone 'if you bet £10 with me that Spurs will win, I'll pay you £50' - that's why if Spurs lose, you gain £10 at the exchange, because that person has lost the bet (exactly like you did at say, Paddy Power), but if Spurs win, you have to pay the person who bet £10 their winnings.
Does that make sense?
As for how fast to do the offers, I would ramp through them as fast as funding will allow, though it's been a quiet couple of days as no football on until the Internationals later this week. I'd probably not bother with new sign ups when it's dead like this unless you were happy doing qualifying bets on horses.
I would withdraw money from bookies unless it's a bookie you know you have a reload you'll be doing again soon as there's generally no point withdrawing if you know you have to deposit again 2 days later.