I'm looking for a compact pump that will bolt on under a waterbottle cage. I want a reliable pump that performs well and will reach an actual 100+ psi . I've heard that some pumps rated at 120 psi don't perform past 80 psi in the real world. I also would like it to work on both Presta and Schrader valves. My LBSs have Specialized, Bontrager, and Serfas pumps in stock and of course, each claims that their brand/model is superior. Any recommendations or links to reports on side by side comparisons?