hi there H
I have a Carbon Fibre Truss F4 10" Newt and the great thing I find is that it holds collimation all night due to the non thermal expansion and contraction it is also mounted on a G11 and the weight difference is quite big between a solid tube version I would not hesitate in recommending the truss version as Bill mentioned you need a light shroud I go mine from Teleskope Express fitted like a glove
hope this helps
cheers Pete
