TM M&P Upgrades. Trigger, Sights, Slide, frame

[Dragate]

Hey Guys,

Curious if any of you guys have any experience with the following:

1. TM V-Custom sights in the dark vs UAC Fiber Optic DAY & Night. The UAC ones look kinda weak at night since they have only small tritium inserts for light, but the v-custom seems to actually glow. Is it just glow in the dark?
2. There's a bunch of different triggers. There's a couple reviews of the UAC trigger, but none for the guarder enhanced trigger. Does the guarder one drastically improve the trigger feel like the UAC as well (wall, break and mostly, the reset tactile feeling)?
3. What does the UAC trigger bar and improved hammer set do?
4. There's some people who say the detonator slides are pretty good, but have some wobble. How does the Boom arms one compare? How about the guarder ones? Do they require fitment?
5. How are the guarder replacement frames? Are they more durable like the glock ones but require fitment or are they literally just a replacement?
6. Does getting a light BBU do anything for this particular gun?