I fundamentally disagree with your first point.
Wouter
Then you're fundamentally wrong...we're comparing your mid boom system with the other proposed systems.
Comparing a "standard" mid boom sheeting system (tramp-boom-block) to your system (Tramp-block-boom)
with the 1m traveller ease you suggested and a 480mm gap between boom and tramp.
your system would require the main sheet to be eased 410mm
the "standard" system would require a 210mm ease
and the sheet forward system would require no ease.
Obviously the cleat on the traveller system requires the largest ease but this is typically achieved by cleating the sheet and letting it run with the block which is quite different in my opinion.