Drop anything that is not HA related and get 15-24
HA4 and PD5
For level 30 imo you should have:
wpp 172 (max)
HA4
Riding 6
PD5
WM8
WPP and HA makes all the difference if you plan on being a porper HA - shooting at speed - If you just want to ride, stop, shoot, ride, stop shoot and so on, then make a hybrid with melee