If the unloading is due to the axle wrap, put the overload back in. I'm essentially running your 5 pack + the overload, and haven’t experienced any axle wrap worth mentioning. Overload will help you axle wrap and won’t limit your droop. It could limit your compression, but for me, I had to bump stop my springs @ flat before the overload even becomes an issue.
Be sure to report back on how you resolve this!