Looking to upgrade my electronics. My boat came with a 1st gen lowrance hook 6. Wanting to step up to at least a 9in model. Will mostly be used for stripers in downscan/nav mode. I've been eying the Garmin 93sv with gt54. Budget will be around 1k but I could go up if needed. Also looked at the hummingbird helix 9in, but it cost twice as much as the Garmin. Is the bird going to that much better?