just had these seat covers fitted to my DVT, gel inserts, and has made a big difference, dont slide about any more, lot cheaper than a new seat. Didn't have the original seat foam cut, left it as is, highly recommended them. Got them from ebay CONQUEST RACING Ducabike Ducati Multistrada 1200 DVT Comfort Seat Cover CSMTSC15
I got them a few months ago, but through the forum. Get in touch and explain you didn't know they were on here and they'll probably give you points off your next purchase.