Greg - thanks for the clarification. I misread my dealer's website - I thought only the P650 and P650L handled a range of nail lengths, and that my gun ONLY used 1-3/16" nails. Now that I know my gun will handle the useful range of lengths for this gauge, I'm feeling good that this is the right choice. Thanks !
As for my thought process - I'm completely a hack but I understood one could use these nails to hold cabinet pieces together while they are either being screwed or glued up, and that the smaller gauge would leave less of a hole. I have a tiny, tiny space so if I ever have to clamp anything up, I'm out of space - not to mention I can barely swing a 48" clamp in my space in the first place. So my hope was that a nailer could help eliminate some of the need for clamping.
In some videos I saw, that process also seemed really easy - I could square up the each corner by feel, shoot a nail in that corner, and have some confidence it would remain square until I could drive some screws. Most recently, I've been playing with pocket hole screws, but I find the act of joining two pieces has a tendency to move those same pieces.
The other application I have in mind is to hold solid edge banding in place until glue dries.
Am I off base in what I think these guns can do ?
thanks !