Call me wimpy but I feel like the 8:1 system on the F16 is often not powerful enough to be hand holding and playing the mainsheet upwind by the skipper. Maybe I should try a 10:1 on my f16
And that is why F16 2-up crews are also seperating the tasks of steering and sheeting over the skipper and crew.
Personally, I dislike the slow response of the 10:1 system so I stay with 7:1, but indeed you can give it a try. Luckily for the F16 crews their is a possibility to upgrade to 10:1, for lightweight F18 crews (were 10:1 is already a standard) there isn't much upgrading potential left. The next thing will be a fully multi cascading mainsheet system like some of the Tornado crews use.
I think the F16 design got a bit lucky here. We envisioned first that we could stick to inexpensive 6:1 systems but with the introduction of the large tops we too had to upgrade. Our luck was that it appears to settle to 7:1 and 8:1 systems that are still commonly available, relatively simple and not too expensive. So we could stay with the concept of a fast well balanced racing boat for a very attractive quote. I'm very happy we limited the masts to 8.5 mtr as well; resulting in 8.1 mtr max luffs. The current F16 rig is about what a 125 kg crew can still manage very well in all conditions; but it is at the very max due to the large heads increasing the leech/mainsheet loads. So we can still satisfy our initial design goals; just !
Wouter