Im having some panels put in. 1.5k for 6200, turn key , with all permits .With microinverters.Anyways, my question is, I'll be having 6 - 235 watt panels.I have some 70 watt ones in my garage just sitting there. They told me that if I add the 70 watt ones with the 235's, that it'll have reduced output. Is this true? I have around 7- 70 watt panels just sitting.