i think huifeng depends on the % of qx
for example, be4 me and fengyue fight in leitai
fengyue always get my huifeng
in my opinion, qx<10 sometime didn't work, maybe 20% will fail, but for me vs fengyue, my qx just need to >20~30%, then fengyue will get my huifeng
therefore, i think huifeng depends on wx and snowsword and 看你的對手.... 你的對手打你打的用重越疼.. 你的huifeng 70%~80% 應該會中...