I did the same! No way do I trust it enough to just wave at the control. I think if we had one with feedback on the brikke it would be better.
I have to use it a lot - but i still waste loads of time at controls putting the brikke in properly and waiting for the flash - it's particularly useless for sprint. The Moravian kit is very old and I've had and seen too many failed brikkes to trust it. The club know it needs replacing, and hopefully this will be with SI.
Yes I understand it's the kit the club has so they have to use it but agree it's useless for sprints! It's just a lottery if you get a brikke which works. At least I'm not the only one who finds it hard to use.....anyway it wasn't emit's fault I ran badly!!