Kurt. Short answer no. I did not use talcum powered or inflate, deflate, and re-inflate. Will do this when I get home form work.
Their is deep pitting on the inside of the rims. I had taken a wire wheel to them before I installed to smooth them up.
As for the tube, they have no structural strength, you can tare them apart with you bare hands. It is almost like the vocalization process was not done or done wrong.
The motorcycle tubes are a great idea.
I was shopping at a repeatable Parts house in San Jose, and price was not a consideration on the tube this was all that was offered.
BTW the tubes are made in India.
Scott