In theory Alex Salmond’s new Alba Party is good news for independence supporters. Let’s assume that support for independence is 45%. Well if the SNP wins 45% of the vote in the constituency seats it will win nearly all of them. But this means that it will win few if any list seats, because the number of constituencies you win is part of the calculation for the list seats. But this is where there is the potential to game the system. This is essentially what Alba is doing.