No dramas about the non-compression preference,as you said personal preference.Thanks for your feedback.I shoot EVERYTHING wide open, so I know thats not for everyone.
Sounds like you have a good set up, cant beat the 'L'' lenses hey?
In regards to UV filters, 90% yes!. What I mean by that on ALL my other lenses I use a UV filter, except for the 200L which is my main 'train'' lens, only because it takes a ''rear-drop in'', which I have never got around to buying ( ie:affording).
With the AF point, I manipulate the AF manually, even in AI Servo mode. I never let the camera decide anything.With the 5 series I had to toggle quickly, but the 1 series has a thumb 'joystick'which makes things smoother and quicker.
If you are learning AI-servo...and it does take a little bit of practice, I would suggest centre focus only to start with.