trouble with predator tuner

[powerstrokeFLO]

i just bought this predator. On tow tune truck runs good but shifts are jerky. on economy tune truck runs terrible at rpms below 1500. wont stay running at low rpms,it stalls. if you mash on throttle it takes off but nothing below 1500rs. havent tried 100hp tune yet. afraid to. whats going on?

[mikel]

what is the revision on the tool?

Thanks