Have anyone using the Spektrum Electric Telemetry system? I have a few questions:

1) How do you guys like this system? Is that useful and work well?

2) Do I need to have the Telemetry Lap Timing Trigger in order to have lap time information?

3) I am using KO PROPO EX-1 UR with Spektrum sm1001 and sr3001 rx. Will this system work with my transmitter?

Thanks!