[Tigers] To undercoat, or not to undercoat

[Pappentl at aol.com]

I'm getting back to my Tiger after an embarrassingly long hiatus.  The  car 
was dipped, stripped and the rust was repaired many years ago.  The  underside 
is now the original BRG.  I intend this car to be a driver and am  considering 
undercoating it.  Has anyone gone this route?  What did  you use?   Are there 
any negatives to undercoating it?   TIA.
 
...tom
Wilmington, DE
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