Total recall line level tips?

[Vacuumdust]

It's been years!  I've built two previous TRs with success but always used with guitars.  I'm planning on building this latest one into a modular synth I built..  there's a mod suggested for hotter pickups by raising the value of R2 from 100k to 220k..essentially attenuating the incoming signal.  Would making R2 a 500k pot make sense?  And if so, would that be any different than just running the incoming signal through an attenuator before it ever reaches the TR?  Anyone use the TR with synths?  Thanks!