Hello, first post here...long time Fender fan!

Can anyone share some info about any positive or negative experiences in modding the TBX tone control?

I just got a pretty good deal on a pickguard loaded with CS 69's for my 01' American Strat Deluxe. The assembly also came with 2 TBX's.

After some researching, there are some people who have claimed that these controls can be modded to work better with passive pickups.