Sorry to step in with a bucket of cold water, but Jacobson flare? I thought this sort of stuff was fairly standard when you went on a type and learnt landing techniques? It's hardly groundbreaking or 'brilliant'. To apply it mechanically does seem over reliant on seat position/height and always being in the right slot approaching the flare, and maybe not relying enough on actually flying the plane as it is. How about varying landing flap positions with their different attitudes?
Might I recommend the 'Rainboe Rotate Technique'? At rotate speed, pull the stick back steadily, then a bit more for Mum as you approach 10 degrees.