Out of curiosity, what do you mean by "a few hundred more watts". I think that the difference between 1 ohm reactive and 1 ohm nominal is a bit more than just a few hundred watts; on a 7.5k anyways..
I'm not trying to bash your post, but people always say that there will be minimal gains from wiring to get a 1 ohm reactive load. But in my head, it seems like being at 1 ohm reactive and wiring at 1 ohm (+3xish rise) would be quite the change. Maybe I'm wrong or misunderstanding your post..