In all the years that I've been using routers I have only on one project needed to use my CMT extension. The reason being is that I use templates for a high number of my projects and I design the templates where possible based on a 40mm template guide (1.5" would be fine)
The main advantage of this is that the collet/chuck can pass THROUGH the guide allowing much greater depth of cut.
This afternoon I spent routing a big project which was an excellent test for my new MUSCLECHUCK. I believe that it has been around for some time and if so has been a closely guarded secret. Apart from soft start/variable speed, this chuck is surely the most significant breakthrough in router technology since routers were invented. Within the next week or so I shall be posting a photo-shoot of the above mentioned project. But here and now I must repeat that I'm incredibly excited with this MUSCLECHUCK, it's just so fast and easy to change bits, believe me guys, I don't often get this excited with a new tool, If I were a few years younger I would attempt to get the Australian franchise because just about every routologist is going to buy one or more. Unfortunately, at the present time there doesn't appear to be one made for the Triton router which I have in the table, I know of course that bits can be changed from above the table but a MUSCLECHUCK will improve this great table router even further. This shot clearly shows how the chuck can pass through the 40mm template guide.
Nothing but heaven itself is better than a friend who is really a friend. - Plautus