I replaced the Electra badged Chen Shin 26 x 2.125s on my Jester with my 10yr. old Dyno Fireballs (thinking they would look cool and, with the rounded tread, corner nicely) and noticed the chunky ride right off compared to the Electra's. The FB's are a 40psi tire and the E 's are 40-65psi., so its not just the psi issue.
I know the price is a bite, but we do get what we pay for in so many ways; the Bontrager H-2s I have are GREAT ; smooth, fast and quiet (go to a Trek store if you can), but the biggest is 2.0, as far as I know.