Clois, when you get Freds book it will all be so clear. Sound like a broken record don't I?
The line size has nothing to do with travel, feel, efficiency..... he!!, I can't think of a thing it has to do with! The bigger the line, the more fluid it will hold
IF I recall correctly the concencious for brake line was 3/16 OD SEEMLESS tubing, steel (I have heard bad things on copper and aluminum), stainless or otherwise (although I would spring for the stainless), all AN fittings with appropriate hoses (I buy mine from Earls already made up).
The 10 and 2 or 3 thing is referring to residual pressure valves. Generally not considered required unless the master cylinders are lower that the calipers. 10 for drums and 2 or 3 for discs. They keep the pads in light contact with the rotors/drums. The actual hydrualic pressure required to stop is in the hundreds and even over 1000 PSI.
This may seem like a stupid comment but just in case, don't forget to put the proportioning valve in the rear line. If it is adjustable, if not exchange it
, it is nice to have it some place you can reach it from the cockpit. I have seen tranny tunnel (don't run your line there, think about a drive line failure and not having brakes on top of it!), next to the seat, etc.
What is it about the 'feel' that you do not like?
Rick