For those of you who looked at the questofrmadness website for your Capacitor mod and "thought" that you didnt have a Cripple Capacitor in your controller then you should look here:
http://www.pbase.com/bitcharg/mods
Basically it shows that there is a capacitor on the back of the circuit board (As QFM mentions) however it doesn't go between the same two points that it does as if it were on the front of the circuit board.
I just increased my range from 12 feet to over 20 feet so I'm a happy camper.
Matt
and for funny things to do with the capacitor after youve removed it look at:
http://www.pbase.com/bitcharg/wrx_vs_crippling_cap