If only I would have cranked up the Ki100i to about 500 planes per month back in 1943; and Frank and George to the same amount. Or held off against some of the pointless attacks on the deathstar -- 1000s of planes lost for no gain.
You're a month ahead of my game with Loka, and I've made the same realization. Production is ramping up while the Allied strategic bombers are still far out of range. I'd rather start running down HI stockpiles now while I still have the factories than wait till the Allies are firebombing the cities.
You don't have that luxury, sadly.
I think your best chance for a strike against the Allied carriers was on those landings just south of Yokohama. The short range, combined with the huge airbases you'd have nearby should (and I say should, keeping in mind that we're all subject to the whims of the co-ordination god) have led to some nice coordinated strikes.
Again, the other recent realization for us both is that you'll need to hold your strike aircraft back until you get a good opportunity. Otherwise, as we've both learned, you just end up throwing aircraft away.