I tried the bassman mod, but too bassy for my taste. I like it tight that's why I used a 22n instead of the 47 stock one. Anyway this capa is worth socketing.
The grit mod is great for single coils, it thickens a bit the sound with more gain. It's not night and day but worth adding.
I tested a tone control (noisy crickett mod) but useless IMO