Are you driving double end or single end bulbs? The double end bulbs need more power to drive them, using the HQI setting. I definitely wouldn’t try to run a double ended bulb on a generic ballast. The bulb may not even fire, without the pulse start.
I personally just changed my electronic ballasts out for magnetic ballasts because of their ability to overdrive double ended bulbs. I may lose a little in efficiency, but I’m getting the most out of the bulbs this way. If you have double end bulbs, I would get the ice cap. It’s most comparable to the luxcore ballast. But the M59 magnetic ballast may drive the DE bulbs better than the ice cap.
So I guess it depends on what bulbs you have. The generic ballast will probably work on a mogul base bulb. I wouldn’t even attempt a generic ballast on a double end bulb.
@jda probably knows more about these ballast / bulb combos than me and can probably explain things better.