right now I have a 212 avatar with a g12h30 and a greenback. Both 16ohm running in 8ohm. My amp is a Cae pt100 100 watt head. I am going to be switching to g12h75 creambacks soon. They are 75 watts. My question is, as of now I only have one creamback speaker and still need to get a second. Can I safely swap out the greenback for the creamback even though the g12h30 is 30 watts and the creamback is 75 watts? They are both 16 ohms. Any issues with running the speakers together for the time being even though the wattage is that different from each other?