I'm running Dunlop GT501s on both front and rear of my Suzuki Across. Stupid tyres for a learner, but they came with the bike. I'm looking forward to a good pair of sports tourers when the time comes for a new set. Suzuki recommends Front 29 / Rear 33. Does this depend on the tyres you're running? I'm finding that mine are a bit sluggish and tend to follow the profile of the road (e.g. in dips, ruts and vertical curves). I figure a higher PSI might remedy this, but I'm a noob and don't know any better. Any PSI recommendations for this bike/tyre combo? Cheers!