Thanks for the compliments. So far I am making stacks for the KTMs and ones for the modern Triumph twins are in the works. Depending on the under tank space either or both of these may fit on the Duc. One downside to that approach is that the KTM and Triumph are optimized for each particular engine. If there was a market for these in Ducland I would prefer to make a M900 specific set and as you say a nice fat torque curve is preferrable to a couple of extra Hp at the very top.
Whereabouts are you?