Spent about 30 min on the phone with Westland Service this afternoon. They agree it should be drying better. As with any dryer, the key is 1) airflow and 2) heat.
Airflow coming out the rear of the unit (hose disconnected) seems good. I'll have to recheck the outside to see if it feels like a similar volume is getting through the hose. An exhaust blockage could cause the problem.
The exhaust is warm, but that isn't sufficient to know if it's high heat or normal heat. Although we've been using the timed setting with the heat button pressed in to 'High', it's not clear that both elements are heating.
By setting the mode to 'A' (automatic mode) both heating elements should be on regardless of switch position and clothes should dry quickly on 'A'. If the cycle completes on 'A', it's a good indication that both elements are coming on. If it runs forever on 'A', only 1 element is on.
I'll have to put some laundry in the unit to test it out on both counts and will update when complete. May take a few days.
As to power, the Dryer has operated equally poorly at several parks, in all cases plugged into 50 amp service.