It was the relays that were the problem on the power bars. All bars manufactured after I think it was June 2007 have the updated relays, and they were using them in the digital power bars before that. I've had both my regular and digital bars replaced with the ones with the new relays, and I haven't had a problem since. The outlet on my regular power bar that my heaters were plugged into stuck on, and on the digital power bar, any outlet I plugged my 2 54W T5s into would stick on
Now that the power bar thing is sorted out my Profilux is great, and I'd definitely recommend it. It controls my whole tank including dosing.