The only straight key I've enjoyed using is the old J-38. Once set up properly it is smooth and a joy to use. Have spent hours using it, and my longest rag chew was 90 minutes and never suffered from glass arm.
Member: ARRL, FISTS, SPAR, SKCC, KCJ, GACW, CTC
Damn the torpedoes! Full speed ahead!
Admiral David Glasgow Farragut