Hi guys, my 2C..
I had a Zephyr and used it a bit when I started foiling. But as progression continued I found myself using smaller and smaller kites. The result is - I sold my Zephyr and even my 11M.
I now ride almost exclusively my 5.5 Drifter.. yep, you read it right
5.5 Drifter 2016. What I can't do on my 7M, which is now my big kite, it ain't worth being out on. Usually my mates are out on their Zephyrs and surfboards and I am out riding waves on my foil and 5.5.. this is no bull, come to Palm Beach and you'll see me all the time at the mouth of the Alley or on 4th ave.
When you learn to use the kite movement to generate the lift you need for a foil you will feel the benefit of fast turning, looping left and then right.. and letting it drift as you ride a wave. But then again I am the guy riding waves on a foil, not in a straight line on flat water, that's why I use a drifter. This year in January I was at Dongara for Kitestock. There was a 6' bearded guy (don't know his name) competing in the wave section on a 5.5 when everyone else was on 7 or 9 - I was amazed at how easy he made it look, never lost ground, his control was awesome. So I came home and placed an order for one - BEST THING I EVER DID !!! I am 5'8" and 74Kgs and I ride a custom MHL LIFT FOIL.. I've never looked back.So, I am not knocking down big kites, they have their place, specially when you want to park'n'ride. But I bet there isn't much I can't do with my 5.5 that you can do on a Zephyr.. that is foiling of course. Anything above 12 knots I am out on it, 9-11 on my 7M, my 9M doesn't get rigged for the foil anymore, that's for my surfboard days

As I said, my experience, my opinion. So, whatever you ride that makes you smile.. that's the right gear
Peace up and sweet light seabreezes.V