I have shied away from internal TOB due to the reasons stated, they are a pain in the a$$ to replace. But I got to thinking (here we go again
) many cars and trucks today have them and go 100K miles and more with no failures..... why then are we having so much trouble? Must be in the "engineering" end of the job. Nothing wrong with the bearing... nothing wrong with the master cylinder... nothing wrong with the clutch....
The problem is the intergration of these parts. All to often we mix and match parts that seem to look right, but lack the ability to work together "correctly". Mostly we solve these problems by some rube goldberg fix..... or in these cases, a pedal stop. Everytime I see this problem, it's usually due to not having a pedal stop, or having one that is not adjusted correctly. It's a workable fix and a cheap one to boot
My daily driver has a hydraulic TOB and no pedal stop... the Ford engineers did a good job at parts selection I guess.