Hi guys. Am purchasing a shaper to add to my bass pedal board and have narrowed iy down to either the Hartke Bass Attack or the Tech21 Bass Driver DI. On a pound-for-pound comparison, which is more worth the investment. I know the Sans is a lot more expensive and a lot of people swear by it but I'm not sure how much of it bandwagon hyping. I love the VXL harmonics and shape knobs and use a stereo mixed Big Muff anyway for my dirt. Thanks guys.