Replying to BD GlideLite Mix STS skins - Custom vs. standard?

I'm in the market for skins and looking hard at the Black Diamond GlideLite Mix STS skins:

https://www.blackdiamondequipment.com/en_US/ski-skins

They offer 2 versions:

- a non-custom version (you have to trim to both length and width)
- a "custom" version (length is pre-cut, still have to trim the width)

I don't know if the custom version already has all of the hardware (tip and tail) attached, but they cost more money.

My skis are 180cm and by BD's recommendation, I need the 125mm x 173-180cm custom skins, if I go that route.

Does anyone have firsthand experience of the "custom" GlideLites? Is the tip hardware already installed? Is the premium for the "custom" worth the cost over just trimming the length myself?

Thanks!