Man, you just made the hair stand up on the back of my neck! Back in the early 80's I worked in an independant repair shop that handled Rolls Royce (HUGE steaming piles of _____ ), Jaguars, BMW's, Porsches, etc. and remember searching for those Withworth wrenches. 2BA....4BA....and a British 9/16 was about 3/4" big!
As for Metric vs. SAE, I find Metric easier too. I spent my entire career working on Foriegn cars and this is what I'm used to. And technically speaking, it is more sensible. As a matter of fact, I only recently started filling out my SAE tools when I bought the Barracuda.
