Running one bankroll across several accounts

Money spread across five bookmakers is one bankroll, not five. Unit size is a fraction of the total, and the balance in any single account is a funding question rather than a sizing one — which means the account with the best price is frequently the one with the least money in it.

Line shopping only works if the best price can actually be taken, and taking it requires funds in that account at that moment. So a multi-account setup converts a sizing problem into a logistics problem: the same total, the same unit, and a standing need to move money toward wherever the value turned up.

It does not mean balances should be equal. It means the total is what sizes the bet and the distribution is what makes it placeable, and those are two separate things to manage.

Here is the catch. Treating each account as its own bankroll produces five different unit sizes for the same bet, and the largest stakes end up wherever the last winning run happened to be — which is a sizing rule based on history rather than on price.

What to do with it. Keep one figure for the total, size every bet off it, and rebalance the accounts on a schedule rather than in the moment you want to bet.