Keel Saver and Sked Savers... Good/Bad-Pro/Con?

[Grumpy SOB]

I have an 89 SC 20 SF and I want to do some fishing on the West Coast around Homosassa-Crystal River and cedar Key. I grew up running around the Keys and I'm told the West Coast has a lot of shell fish bars as apposed to the mud flats in the Keys and to be very careful. Would it be worth adding Keel Saver and Sked Savers or is there something better?