Blind Spot / Side Windows

Hi All

Blind Spot windows (the little triangles or half panel square behind front seats) Im trying to find out if they are worth fitting and if so what type to go for.

Im starting to tow a larger trailer more often (25ft long ish) and on blind side reverses find myself needing better visibility where i can't see the back end of the trailer in the mirrors and being a hardtop i have no side windows in the 90.

If any one is local / nearby to Marlborough i would like to just sit in for a second to see if they are worth the effort.

alternatively any pictures from the driver seat looking back through or advise would help.

I prefer the look and fit of the triangles but wonder if they offer enough.

Thanks
Rich

Mine came with these fitted by the previous owner:

http://www.masai4x4.com/defender/si...hard-top-panel-van/p/9673429/category=1022096

I must say there are quite a lot of situations when I have found the visibility invaluable.
I'm in Newbury/Thatcham so not too far and you're welcome to have a look if you're over this way.