On Thursday, July 12, 2018 at 6:55:10 PM UTC-5, Roy B. wrote:
I have both: Metal top in the US and fiberglass in South Africa. The metal top seems to be easier to clean and keep clean. Also, the front door on the fiberglass top does not latch well or consistently. I have seen several of those blow open on the road. The metal top front doors don't seem to have that problem. But I don't think that there is a real big difference.
ROY

As a bit of an aside, I installed a second latch on my (aluminum top!) Cobra trailer forward hatch/door to prevent the dreaded "door bent back at 180 degrees from 60MPH (96KPH)" syndrome. Here is the latch I used; https://www.westmarine.com/buy/south...27?recordNum=9. Latch picture can be found at; http://aviation.derosaweb.net/asw27/documents/Trailer/