Sorry! I've owned 2 Sabres, a 28 and now a 38.
To answer your questions, not sure what " full sail" is, the definition can vary. However, you should be able to go with full main and 130 Genoa to about 18 knots on the 32. More importantly, Sabre likes their boats kept at 26 degrees of heel or less. And heel is highly dependent on the sail quality. If the sails are not shaped correctly and the draft is too far aft, you heel more and sooner. So my assessment assumes good sails, not 25 yo stuff. With decent sails, Sabres are very well balanced and weather helm is minimal. Ride is average, my 28 had a lot of sheer and was dry for her size, IMO. The 38 has less sheer but we're farther aft and are dry. As with most vessels, size and weight counter chop, our 38 has the mass to go through heavy chop and not stop. Our 28 would drop to 0.5 kts when slammed on the nose with a 4' face. That's one reason why we went larger ... The mass has made our ride much better. This is why I recommended the 32 to you. .. More interior accommodation and mass.