I wish I'd known you six months ago! I sold a 221 sq ft chute because it just wasn't quite enough grunt for my P-19 with around 400 lbs crew, and bought a near New England-class Nacra 6.O chute @ 346 sq. ft...it's a bit big tho. I'm running it on a 15' 4" pole and still sheeting to the rear beam...you just THINK your 5.5 has lee helm when it gets reachy and breezy! Anyway, email John Howard; he has my old sail on his P-19, and might want to trade up to the boat's "correct" size of just under 300 sq. ft. Try JHoward@CFNTEXAS.com