The only headsail adjustment my RSA makes is +3 for >155%.  My #1 genoa is 
165%, but I don’t race with it for several reasons (don’t want the adjustment, 
can’t point, it’s heavier than my 150% drifter, etc.).

Given the typical (light) wind conditions on my lake, I usually leave the 
marina with my 150% drifter rigged.  I lose a couple degrees of pointing 
ability against my competition with that sail, but it’s the best size and 
weight for the typical wind.  If it’s blowing enough when we’re prepping the 
boat, which is atypical, I’ll rig my #2 genoa (also 150% and heavier material).

But we’ve had a crazy gusty season.  Twice this year the wind has jumped 
instantly from ~10 to 30+ a few minutes into the race, and I’ve torn my drifter 
on both occasions.  When that’s happened my crew has swapped my #3 genoa 
(heavyweight 130%) for the torn drifter in real time.  When that happened a few 
weeks ago, we made 6.7 knots under main alone while swapping!

More craziness: last week week shortly after the race ended, the wind gusted up 
to 48mph.  Fortunately we anticipated it, dropped the drifter, donned PFDs, and 
started heading to the marina.  But we had to sail into the wind shadow of the 
dam to drop the main safely.

Anyway, back to headsails, my sail inventory includes a jib, but I never fly it 
because I don’t have tracks forward and inboard enough to sheet it correctly 
for good pointing.  And if it’s windy enough for my 30-1 to need a jib, I 
probably shouldn’t be on the water :)

A bit of rambling, but that’s my $0.02 on headsails for racing my 30-1 on 
Chatfield Reservoir.

Cheers,
Randy Stafford
S/V Grenadine
C&C 30-1 #7
Ken Caryl, CO

> On Aug 3, 2018, at 8:16 AM, Dennis C. via CnC-List <[email protected]> 
> wrote:
> 
> Rating adjustments for headsails are usually defined in a PHRF region's 
> bylaws or equivalent.  Here's the adjustments for the Gulf Yachting 
> Association.
> 
> 171-180    -6
> 156-170    -3
> 136-155      0
> 111-135     +3
> <110         +6
> 
> Dennis C.
> Touche' 35-1 #83
> Mandeville, LA
> 
> 
> On Fri, Aug 3, 2018 at 8:58 AM, David via CnC-List <[email protected] 
> <mailto:[email protected]>> wrote:
> Interesting...our PHRF fleet does not allow for an allowance below a 135.  
> Which is pretty silly  considering the dominant Smokin' SW breeze here we do 
> not need anything more than a 110-120.   And raising the main is an option.
> 
> 
> David F. Risch, J. D.
> 
> Gulf Stream Associates, LLC  
> 
> (401) 419-4650 
> 
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