David S wrote:Thanks Mike
Mine is the Firgelli FA-240-12-18 ,they have a lot of diffrent sizes and load limits,I mocked up with 2 pc's of wood to check what size I needed,being careful of where the counter top is etc,The 200lb may have been overkill but wasn't that much more expense.It weighs next to nothing and seems to be first rate quality.
I noticed that there is very little difference in price between the slow, heavy-load models and the fast, light-load models. Have you computed the weight of your clamshell roof?
Also, there is very little difference in price between the models with external, piggy back motors and models with internal motors contained within the 1.77-inch square tube. I'm curious as to why you chose the external motor model.