Have you seen any conflicts with KM?
No, nothing that comes to my mind at the moment. With the exception being the mentioned ClipboardMerge feature, which is triggered when you (or a KM macro) rapidly presses 2×⌘C. But you can disable that.
Of course you have to take care that your LB shortcuts don’t overlap with any KM triggers. But this shouldn’t be too hard:
###Customizable shortcuts:
###Non customizable:
