I just bought two Helix units last week, 12 & 9. I love them. SI, DI, and mapping kills Lowrance. 2D Sonar is better with Lowrance from what my experience has been so far. I've got a lot to learn with the new units, though. First experience with Birds. I think Helix is the workhorse of the Birds. With such an improved brightness of screen, no glare, higher pixels, awesome screen SI and DI, faster processor......go with Helix. You'll be glad you did. I bought mine from David at Shut-up-and-fish. He will fix you up. GL!
2007 Skeeter 20i w/ 250 HPDI