Had a Swordfish before and been paddling new Zest for around two years now.Zest is a "larger" version of the Vault model where Vault is good for around 75kg paddler,the Zest is for us normal folk in the 85-90kg category.The Zest is slightly more unstable when compared to the SF but quicker and has improved my downwinding considerably.It can hop onto the smallest of runs and linking runs is simple.The nose is fairly low volume but this increases to just in front of your feet and I do feel this is what helps get it onto the runs.Has such a simple adjustment design for setting feet length,you wonder how some major manufacturers still have not caught up.Have paddled in all conditions including buster South Westerlies off Durban without a problem and for me my boat of choice.
Negatives,not many,bucket is a bit too wide and a little bit too light for North Durban conditions with launching and landing virtually always being through decent surf.