Heel and toeing is only difficult for the first 1000 times. People do it because it unsettles a car LESS and is mechanically sympathetic.
Synchros do not match revs, they only allow poor driver's to change gears
Start practicing on the way to and from work, say 30 shifts a day and you will have it mastered in less than 7 weeks. Looks like another case of HTFU