You do NOT need to double clutch on the way up. Until you get used to it it is fine to double clutch on the way down, however that too will be unnecessary with practise. The trick is to shift EARLY. Do not wind the engine up too much, and then shift out of 1st, give it a couple seconds time in neutral, then shift into 2nd. Another thing, make SURE your idle speed is set low enough. If the engine does not idle down it will make shifting tough, especially between 1st and second. Go back to the original Ford Model A owner's manual and follow the directions they give. The only thing I do differently is shift slower than the manual says to do. Until you get the hang of it, you may lug the engine a bit, don't worry about it as long as you ease the throttle on carefully it won't hurt a thing. That is contrary to what a lot of people preach but it won't hurt a thing as long as you don't ask the engine to pull too hard at low RPMs. My grandpa grew up on Ts and As and his comment was that is is the high RPMs that ruin the babbit. You will soon learn the sound of the engine and how to ease the throttle. #1, shift early, #2 wait between gears, #3 keep your hand throttle idle speed LOW. #4 practice. The oil weight, as Tom says, does make a big difference as well. I originally had the 600W from Mac's in my ******, replaced it with Lucas oil stabilizer. There is no comparison. I worried about my transmission before as it was "harsh", now it is smooth as silk in comparison.