Yup. And thanks.
D spring made quite a noticeable improvement in the DA trigger pull. And the grips improved the feel dramatically for my small-medium hands. Had thought about getting the WC short-reach trigger, but with the LTT grips it wasn't necessary anymore. While I never had any issues with the safety, I do prefer it decock-only.
Had IWI PT night sights installed early on, but they're dead now. Can't re-lamp the front sight, so I just painted the rear sight black and the front sight fluorescent orange.
It also has the Wolff coil trigger return spring. At the time I think they called it the Border Patrol trigger return spring. I really like it.
Been thinking about swapping out the rear sight with a WC rear sight and maybe installing the WC mag guide. Not really high priorities, though. At some point I may install the latest upgraded locking block; mine is still on the original 1st gen version.