I really like the Topeak Morph (Road or Mountain) because they are more like a floor pump than many other portables. The flexible hose will be easier on your valves then anything a traditional frame pump will do. I don't run high pressure currently, but I think the Road Morph will give you pretty high pressure, since you can step on the little flap just like the base of a floor pump, and lean on the pump to get the pressure... It isn't as nice as a good floor pump, but it is as close as I would expect to get for a portable pump.