as in pre load or the compression? too stiff for woops or jumping?
Where did you mount the ballasts? I ran 4 hella lights with 55watt hid conversions on my rzr1 and it was stupid bright, but they pulled a lot of power.I haven't tried them yet, still wiring them up. I have six 55 watt hid' plus the led for a total of almost 400 watts. The stator is 610 watts, or 640. All the hid' have the 3x4x1" metal ballast.
Kartek and a few other off road shops carry nice ballast holders that you weld to the frame or lightbar. They are about $35 for a dual ballast holder.I hose clamped them to the frame