I ended up buying one like that, thinking like you did. Those controller are made for a valve type wastegate NOT vane control. They don't have enough movement for vane control. I have a new vacuum can at home I got with the 17 I bought, I think I still have it - I'd be will to sell it cheap, but you'd need to change it to a boost type controller.
how do they not have enough movement for vane control? they have a larger range of motion than the vane lever has..
IMO, that would work well. In the mechanical vane controls I've built there has been a transition lever. You can make the lengths of the arms on that transition lever appropriately sized so that the range of motion of the vane lever matches the range of motion of the boost can.
The one I had only had roughly .050 movement. you'd have to increase that as the vane control moves much more than that. No biggy - I just think it's much easier to use what it came with, as far as ever needing replacement as well.
OMG! THANK YOU!!!a gift from the gods.. just what i needed!
Looks like a very nice unit. Thanks for the link.