I just bought 2-999ci's but is now having second thoughts. I'm still in the returnable period and seeing that these units were only $100 less than the new Helix 9 SI GPS, do you guys think I should return them and get the Helix 9 SI's instead?
PROS: screen is 1 inch bigger, faster processor, better screen, newer software
CONS: non-HD transducer, $100 each more than what I paid for the 999s.
Also, I know that the Helix 9 SI's will come with the XNT 9 SI 180 T transducers but do you guys know if they are like the 899's and can be upgraded to the XHS 9 HDSI 180 T transducer with full function of all the frequencies?
One last question, are the Helix networkable with the core series?