refering to my post on page 4, extract below: "1) The throttle control on the android app is still not very smooth and does not always respond to touch. I am comparing it to Engine driver proper android app and JMRI. The throttle3 control on engine driver is very responsive and smooth. 2) F key operation should work one of the ways: a) Latched - press key and function turns on, press again and function turns off. b) Press and release key and function runs for preset time in decoder. c) press and hold key and function runs until released." I have received a very comprhensive reply from HRMS. HRMS have tested the throttle control extensively and do not beleive there is an issue. They have asked me carry out a ping test and confirm that I am running the latest RM software on PC and Anmdroid device, which I am. They have responed that the ping is poor so I need to investigate further as is causing the unresponsive issue. They confirm that 2a) and 2b) work with RM as I indicated but that 2c) is currently not suported by RM but will be considered for a future update.