ND or not 2B

[yoni_blau]

So I've decided to keep my fujifilm x100 which i adore and buy 6d with a couple of primes.
there is a question that has been bugging me though

in my x100 i have built-in 3-stop ND filter. that comes might handy when i want to take f/2 photos in bright day light or even above average light. although the x100 goes up to 1/4000 i still found myself using it a lot.

I can only imagine whats going to happen on a 6d with 1/2000 and a f/1.4 lens

So what do you usually do in these cases when you just dont want to use smaller aperture (the reason you bought the lens in the first place) in bright day light.

do you carry a 3-stop nd filter for every fast lens and keep taking it off and on?
do you just leave it on until nightfalls?
keep a cpl on all the time?

[neuroanatomist]

The 6D goes up to 1/4000 s, not 1/2000 s.

But even with 1/8000 s available for me, I still bring along 3-stop ND.  My fast primes (35L, 85L II, 135L) all take a 72mm filter, so I only need one.

[yoni_blau]

The 6D goes up to 1/4000 s, not 1/2000 s.

But even with 1/8000 s available for me, I still bring along 3-stop ND.  My fast primes (35L, 85L II, 135L) all take a 72mm filter, so I only need one.

Thanks
I dont know where I got the 1/2000 from
still need ND though