Ive never had that problem with my PW's...
It has done it to me using two PWs in sunny outdoor conditions. It didn't take much searching to find others who have the same issue. I need to play some more to see what it's doing and when so I can compensate.
I wasn't suggesting not getting them as I like them myself. The main reason I like them is because I can set them manually over wireless with my 478DR. TTL is a nice addition. I also believe the AC3 may help with this problem but again I've not done any with/without tests.
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