Audible diffferences between Vandy 2w & 2wq

I am considering adding a sub to my system, used of course. I wonder if anyone has listened to/compared both the Vandersteen 2W & the 2Wq. I know that the Wq has adjustable "q" and that the q for the 2W is fixed at the low end of the scale for fast, tight bass. I listen mostly to acoustic music (bluegrass/folk) and some, mostly older R&R. Any thoughts on what I might be missing if I go for the older, cheaper 2W instead of the 2wq. I have a separate HT at the present.
Associated components are
CAL CL-10
BAT VK3i
McCormack DNA 0.5 Rev B
Vandersteen 2ci

Thanks.