I have a bit of experience with that setup, but primarily for winging. I used it with both the 50 and 38 tails. That foil setup is definitely not turny. It tracks well and has good lift and stability, but it really locks in and is hard to break it out of its tracking to turn. Some people describe this characteristic it as "stiff". The glide is pretty good.
I switched to the 200HA (using it with the 38 stab) and there is very little downside to the 200HA in my opinion. It turns a lot better, feels much more playful, glides better, pumps better and has a higher top speed. The 250HA had slightly better low end, but its not a huge difference and I'm able to work the 200HA much more efficiently to offset the slightly worse low end lift.
Based on my experience dropping from the 250HA to the 200HA, Im now pretty curious about the 170HA and 120HA and how much I would lose on those wings.