My mk5 only has one pre-shape. What does the 2nd preshape curve on yours look like in tems of cuts,boosts and at which frequencies ?
It's sort of the opposite of Preshape 1; where Pre 1 is a mids-cut and emphasis on deep and high freq's, Pre 2 is more low/mids oriented. From the SMX Line manual:
"...a more ROCK orientated PRE SHAPE with solid bottom end and more mid than SHAPE 1."
There is access somewhere to the actual frequencies in the curves, but I don't have that handy. B.A.S. might be able to help out with it. You could also look over at "Basschat.co.uk" and look around. Some ex-Trace employees hang there.

Ahem...