I am using a Darkglass B7K for mag tone, straight to a power amp. I also have a RMC piezo with internal preamp that I effect & run separately into the same channel on the power amp via a Sansamp BDDI Deluxe. The other channel on the same amp is used for guitar. There is an enormous discrepancy in the volume output of the two DI's.. the B7K being capable of significantly more gain. I've switch the two DI's around for an experiment as I'm aware the piezo output would naturally be lower, but don't really want to stop using the B7K for the mags. It seems really quite difficult to obtain decent enough gain for the piezo output to be blended evenly alongside the mags. Is this a normal trait of the Sansamps vs Darkglass? Can anyone suggest good cost effective solution, whether it is worth using a further boost pedal, or something similar? Thanks!