Well that’s the million dollar question! Do what you feel is best for you.
I once was in a similar position to yourself with 1500/700, i obtained a Metro endorsement and it definitely opened doors for myself. I went straight into casual CMD Metro flying and soon after that had interviews with a large regional with 1800/1000.
Everyone is going to have a different opinion on this issue, simply way up all your options and select the one which is best suited to your self.