Hi SysEx, Welcome aboard :) The MBSID application has reached the limitations of the PIC chip, so there is not enough memory for a dedicated FX machine to be buillt in. You could use the CV outputs to control analog fx, but if you want to have a dedicated fx processor, you would need to build it on a second core module - of course you can still put both devices in the one box, so it would still be "built-in" :) I recommend you read this page on the wiki. Be sure to follow the links to the forum. There is a lot to read, but it's pretty interesting :) If you have some programming skills you might be able to get a core module to control a Miss Parker, or possibly several of them... That'd be very very cool, but no walk in the park...