Did a 3min run with mine and it only got worse. I didn't LPM but after about 1:15 the beam started to fade and all but disappeared. Got slightly better at 2:30 but still way worse than a regular 1min run.
My last post was incorrect, I checked the video I made of the lasers performance and my duty cycle was 3 minutes 12 seconds, minutes, not 5. And watching the video again the last 30 Seconds showed mode hopping on camera . The power fluxuation was so negligible that I didn't notice in the lit room I was in, but my camera picked it up.