I am looking at adding to and possibly replacing existing gauges, and I like the idea of the greater sweep angle of the mechanical gauges. What experience have any of you had with mechanical gauges, and what if any is the difference in accuracy between machanical and electrical? Thanks for any tips. Regards, Richard Funnell, OES raf40@oes.amdahl.com tel. (408) 992-2265 fax. (408) 746-7633