Joe,

My money is on the 175 in 10 knots and under, providing not only more drive
but also lifting forward the main center of force resulting in higher
pointing than the 135.

The boom in the lower position with the 175 does result in pointing about 3
degrees closer to the wind.  I've never been able to compare speed.

Rick

On Wed, Feb 22, 2017 at 10:24 AM, Joseph Doucet <jadoucet at snet.net> wrote:

> OK, I agree on the heeling issue. the boat will sail with less heeling
> with the IMF sail in the lower position.
> But in moderate wind ~ 10 knots, does it sail faster in the upper position
> or in the lower position?
> it seems that in the lower position the genny covers more of the main so
> it may provide more drive.  This may depend on whether one has the 130 or
> the 175 genny.
> Thoughts?
> joe with the recycled 2004
>
>