Quote Originally Posted by rnvinc View Post
There are HELIX SI in 5, 7, 9, 10, and 12 that have "DI from SI" (no DI piezo) ...

There are HELIX DI in 5, 7, 9, 10, and 12 that have dedicated DI (no SI piezoes) ...

ONIX is the only HB SI unit that has both SI piezoes and a dedicated DI piezo in the same xducer ...

Rickie
Is there any significant diff between helix 10 di gps and helix 9 di gps other than size