Yes, I have a Novation MK11 61 and an Axiom 61 for use with vArranger and Muse Receptor 2 with Kontakt and complete East West orchestral and B42. I don't use the Receptor much, but do use Composer3 notation from my laptop for playing two handed over midi files. The SD40 could handle the lead and accomp in a compact light rig with one of my controllers, or, if I wanted a bigger setup, I could midi an SD40 to one of my KBs.

I may do nothing, but it is fun to try different combinations.