Programming MSD - when should timing be all in?

I am playing with timing curves for my programmable MSD-6AL-2. I am running my start up timing lower - around 14 degrees. I ramp it up for idle to around 19 degrees, then I am setting all in around 2800 rpm. Any better ideas? Any thoughts or suggestions for when to kick into all in? I'm running a 408 stroker with 12:1 compression. My max timing on race gas is 38 degrees. 93 octane I max out at 34 degrees.