Balance Driveshaft ?

[CarlSereda@aol.com]

Hi Listers,
I'm contemplating getting a stock TR4 driveshaft 're-balanced' for approx. 
$45.00. 
Have others noticed if their shafts were altered by re-balancing (removed or 
added weights)? Is this a worthwhile expenditure or is it overkill that will 
not be noticed on these rugged sportscars?
Carl
'63 TR4 since '74