anyone with srp rev box experience

[6858-400ex]

is it any better thant the wb

[6858-400ex]

also does anyone know if the g4,alba ,esr, rev boxes are any good

[mikeminyard]

GT Thunder has 2 rev boxes, one for XC and one for MX. They are really nice, but more expensive. No starting problems at all, even with a near dead battery.