Torsion axel issue?

No matter what the vehicle, it will improve your ride quality even if you don't need it.  After moving from a minivan to our 'burban I tested with and w/o, and decided to keep using it because it rides much better (plus it is my sway control).

Jumped around inside of the pod and saw that both sides of the axel were in fact flexing (there was someone else in the storage area at that time and we could only imagine what they must have been thinking!). Great sign!!!  Verified tire pressures again just to make sure. Just retorqued yesterday so that is good. Hitched again with standard hitch ( non WDH). Pulled out of the storage area and when I got to the gate the brakes locked up. Never did that before but then again we were on a dirt surface. While I was stopped I checked the gain on the brake controller and saw that it was almost double of what I normally run. I typically don't check it when I pull back and forth from storage as it is really close to home. Well after I corrected the brake controller we went for a pull with the wife in the chase car watching from behind and I watching the mirrors closely. While the tires did flex they never left the road as before. The wife determined the the axels were flexing over bumps. Both sides. Great news

What I can determine is that the brake controller being out of whack may have caused me to think that the axel was not functioning properly as the area were I saw the issue was a downhill road and my foot on the brake to control speed. I feel now that the tire must have been locking up and bouncing over bumps rather than rolling over them. I never saw smoke from locked up tires but that is the only explanation that I have as the pod seems to be pulling ok now. Again when this issue occurred I had the WDH attached and the gain of the brake control was erroneously high. 

I will be pulling again in about a week to the house without WDH and will verify the operation again. 

My lesson here may be two fold. First off ALWAYS verify the gain of the brake control regardless of the distance pulling. Second is if the WDH is really needed with the POD?  I will have to rehitch with the WDH to verify if the tire bounces again or not regardless of the brake controller gain setting. 

Thanks to all of the suggestions of things to look at. I was paranoid about a potentially messed up axel as that is a scary situation. I do now have an appt scheduled and think that I may still keep it just to have everything looked at. Just want to make sure all really is ok. 

Todd