Help Needed -> Arion SCH-Z Pulsing Sounds ??? Mods ??

[solarplexus]

Hey there,

I have an Arion Chorus that has a pulsing sound to it when connected to my BOSS Tu-2 through the daisy chain.  Is there a way to get rid of this?  Also, I checked the guts of the pedal and it has 3 JRC4558DD.  Would there be any improvement in the sound if I'd switch to let's say... NE5532 or JRC4558D or whatever??  Also... my tone control got kind of noisy when I'm in the bassy section... is there a way to change the specs to the old tone control of the SCH-1?

Thanks for any help you may provide,

Matt

[solarplexus]

*bump*