I just test drove a JD 4310 at my local JD dealer. This beauty was smooth as silk compared to the JD 4300 hydro I tested last year. The 4310 had 4wd, folding rops, e-hydro, match speed, mid pto, R4 tires, dual selection valve and svc. The quote for the machine was $16,000, $3100 for a 430...