I do.
I have used D200-48 for many years and love them.
The D2000-49 came out only a few months ago. They are an inch longer.
I like them a little better for one little reason- The inch longer makes the handles stick up a bit higher in my pouch making them easier to ID and grab, for me at least.
I don't think the inch helps much with leverage.
I've never had a 10" pair like Knipex makes although I do have a Snap On 312CF 11" pair that I like for additional prying leverage but they're long and awkward for most uses.
Other than the inch difference- they're pretty much the same.