Darrell,

Congratulations! You will absolutely love the heather UK mocker. That was my first "expensive" kilt and I love it However the color it probably darker than you think. See the pic below, although it siffers from the same flash washout as on the UK site. Not a detractor, just wanted to let you know. As for your mix of trad and contemporary kilts, I am in a similar boat. I have one Sportkilt, that I do not even wear around the house anymore. A loose pair of shorts, when I wear anything, is enough. (oops, is that TMI?). Other than that I have:

1 Tan AK
2 SWK's, standard Nightstalker, HW Solid black
1 Trad Scottish national
1 trad Pride of Scotland
3 UK's, Olive and Heather mockers, and Tan original
1 USAK, blackwatch semi-trad
1 PK brushed grey denim twill
1 PK brown herringbone twill (waiting delivery)
1 SK, not worn much

Enjoy the addiction.