Yes, definitely.
First past the post, the evidence tells us very clearly, is the world's worst system for achieving gender balance in politics. Every other system is better. The reason they're better, and we see this from the Scottish and Welsh parliaments, is that they enable parties to do the right thing, to put forward a more balanced group of representatives to the population.
The Welsh assembly was the first gender-balanced parliament in the world. As Darren was professing earlier, we should never say the electoral system is the prime cause of anything, or that it's a silver bullet. It's not, but it's an enabling factor. That was one of the factors there that enabled the parties to take the positive measures to make sure that it was a more diverse parliament.