We're still testing our WKM/AD6 w 2814 Axi's but thus far it hasn't liked 12" APC SloFlys or the 12" Xoars Beechwood. It does like the 13" APC thins and LOVES the 12" XOAR Carbons. Have been told faster is better for WKM. Haven't tried 11's... hmm.
Have to agree with Iceman on this WKM like revs. My ADX3 loves Graupner 11" electros My take off weight 4.2 kg with Sony CX730 and 4.5 with 550D 10/22 lens