Are we talking about the same plant when I refer to Acer negundo Flamingo? Thinking now I believe it is different but same treatment. I'll check it out.
This is a shrub that grows 7' high and 10' across every year from being hard pruned to the base. It is an absolute beauty. A real eye catcher here....pink, white, cream amd pale green leaves. In addition I pinch out the leading shoots 2 or 3 tiimes during the growing season to make it more dense and to encourage the brilliant pink new shoots.
As for "bleeding" well, no. None at all. I prune in the autumn here but spring is prob best in colder areas. To its sunniest side I grow salvia cacalifolia. Bright blue dumpy flowers look great next to it.