SWTC2 in a Multiface

[superferrite]

Hi everyone.
Put a SWTC2 in my Multiface.  As the original amz article suggests, I used a pot with the same value as the volume:  250K in this case (it's what I had around when building ROG's Multiface, and it seemed to work fine until now).
I can barely hear a difference twiddling the 250K tone pot and R1 as 10K, R2 as 47K, and a .022uf capacitor.
Are my values wrong since the original tone had a 100k pot? 
Any suggestions? 
I had a .01uf cap in there and it sounded a bit brighter than the SWTC2.

Thanks for all the great help in the past, guys. 

[superferrite]

PS, I have a 10K, 25K, 50K and 500K pot hanging around if these would be more useful for this mod!
Thanks