Would advancing this cam 2* or so be worth doing.

I advanced mine 4 deg. That gives better mileage and smoother idle, plus more low-end torque. I also figured it gives more life since at 4 deg wear I will be back to factory, and I hope to change my cam again in 20+ years. Your cam is bigger than my 0.422/0.444 hydraulic. I also put in Rhoads leak-down lifters for better low-end.