I like the idea of a 173 PHRF rating if using the 110 and no spinnaker. Where did the rating come from? is there any documentation available for that rating. I would like to convince the PHRF rater at my club to give me that rating if I'm sailing with the 110 alone. - I After the first day of racing using the 155 asnd the high winds I was too wore out to do it again the next day so I only hoisted the 110. It is great upwind but i suffer downwind with it.