I'm not even sure who Scott is, but I think if you've been lifting hard and sticking with the basics as we all know them (dumbell/barbell press, dumbell/barbell incline and decline presses) and also incooperating other movements (flys, pec deck etc. etc.) AND have been eating like a madman (which I believe you have) and still aren't seeing much progress in chest, I don't think you can do a whole lot more besides just keep lifting hard.
I'm assuming since it is a lagging part you've tried a lot of different things (different reps, light or heavier weight etc.) to try to improve it.
But hey, I???m newer to this than you (going about 10 months) so maybe I???m wrong and a magic routine will help pack on the chest mass. I personally think it's a genetic thing though and you just don't have a good chest, like I have crappy arms. I would just keep trying to add as much mass all around as you can, maybe prioritize the chest a bit, and that's all you can do.