I'm looking for a tire that is good against pinch flats when riding aggressively, but that still offers reasonably low rolling resistance and doesn't weigh a ton. I looked up Panaracer's website and they rate the RibMO as best in avoiding pinch flats as well as puncture protection. Fyxation also claims very good pinch flat protection, but they are very expensive, nearly $50 apiece. I'm looking at between 700 x 28c and 700 x 32c for size. Currently the bike has 25c Kendas rated at only 90 psi, and I've already managed to get a pinch flat on the rear. I'd like your opinions/experiences on these 2 tires and any others that you think would be a good choice for this type of riding. Thanks.