Had a quick flight with the new HQ6x4x3-v1s on a low-kV 4S CPL2207/1500 build. Carrying a heavy (~300g) battery and a GoPro, but nice cruisey flight characteristics!
I think I prefer 7" on these motors, but I'm looking forward to trying these props on maybe some CP2207/2300kv for a good mid-range, if my AIO will stand up to the amps that is!