[TR] more brake pedal height

[Tom Note]

A few days ago I mentioned that my TR6 brake pedal is almost 3" lower at 
rest than the clutch pedal.
John Mitchell kindly took some measurements on his car for me, and  I 
believe now that the clutch pedal is at the right height and the brake pedal 
is lower than it should be.
The only thing I can figure, is that the booster operating rod linked to the 
pedal is shorter than spec for a TR6. No idea how that could happen; maybe 
the booster replaced by a different model by the PO.
Anyway, I  think I can gain about an inch by removing the aluminum spacer 
and mout the booster directly against the firewall. What do you guys think 
of that? Any obvious problems, safety issues, etc. that I don't see?

Thanks,
Tom