^G2 is easier to use. Brush on and it has epoxy in the mixing. Very smooth and hard when dried. It should last longer too. I painted the calipers on both of my Z32s. I will use it to paint the calipers black on my 540i when it gets warmer.
TIP: you only need half of the kit for all 4 calipers. Do not mix the whole kit and throw away half. It has the shelf life of 6 mos, so I make sure to use the remaining half to touch up just before it expired.

VHT is spray on. A little messier and no hardening in it. There are much more works. I used it on my iS since the G2 doesn't come with the gold I like.

__________________

00 E39 DINAN S1 //M5 (82k miles)
06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html
90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq
01 360 Novitec Spider F1 (26k miles)