So I finally got around to replacing the seals in the master cylinder/lever this evening, all went well, and the leak has now gone.
However, despite bleeding the brakes (twice) they don't feel all that sharp, there seems to be a bit too much lever travel for my liking.
In comparison to my rear brake (Hope Mono Mini) the front seems to have less power and require more lever pull to work well.
Everything seems ok though, but I removed the brake pads and pulled the front brake lever and noticed that one or other of the larger pistons would move first, and move further than the other pistons.
Are all pistons supposed to move an equal amount, and in unison??
Is there some way to set up the brake so that it requires less lever pull to operate it? My own personal prefernce is for more of an "On/Off" setup with only a small amount of lever pull required to get full braking force.