Just had my first ride on a 15cm 612 with the Activewave thingy.
Tried it on the pavement outside my house the night before and hated it, the obvious step at the back seemed really intrusive, but with padded shorts the next morning all seemed good.
My inclination was to move it back a wee bit but over the course of my ride ended up shuffling it forward and a smidgen more nose down. Despite being mounted at the same height as my Fizik Antares I still think I should lower it a bit (as per SQ instructions) as could feel it at back of calf when trying to hold a tuck into the headwind.
Not sure if I’d want one on the gravel bike too though, it seems to rely on you holding quite a stationary position on the saddle, not something I often have the opportunity to do on gravel!
Anyone else using one, anything to report? Ta