For one, the bowline knot got in the way unless I made it tight. My reefing lines are quite heavy.

The buntline hitch closes on the boom but I don't need it to slide. I ended up placing the knot aft of the cheek blocks. That seemed to give me a better - even pull down/aft to the boom.

Then I mounted my cheek blocks aft of the reefing clew cringles - but not excessively. So it seems from the cheek block, it pulls it down and aft - equally. It doesn't appear to need any more cinching down.