A lot of the overhead is probably in monitoring walls and figuring out how to balance liquidity. Supporting PPC will not cause more work immediately (the infrastructure is not in place yet for PPC/NBT), but there will be some extra burden at some point.
There has been less signing in the past month, and the NSR group is already not as busy as the NBT group. The division of NSR/NBT groups was an artificial one as limited by the multisig support by Nu. This should not give a total division of labor; some responsibilities can and should still be shared by both groups, at least within the extent of the 145 NBT pay. Sell-side and buy-side are two sides of the same coin so FLOT operations can greatly benefit from discussion coming from both sides.
A better solution, of course, is to ask @sigmike whether standardizing 15-of-15 multisig can be done in 2.1, so that all of us are in the game.