Just bought a used Necky Spike. It has no seat and I know I'll need one. I spend up to 6 hours at a time in my kayak, and need some back support (too old for great core muscles!). Any recommendations from current/past Spike owners?
Also, the bag in the 6" hatch in front of the seat is not waterproof, just a nylon sack. Any recommendation for that?
Thanks for your help and comments.