Rotella is still at 1200 PPM ZDDP; the Cx oils did not drop the levels as much as the gas engine oils (Sx oils). Dartfreak if you are starting with 1200 PPM ZDDP in the Rotella, then I would only pu in 1/2 the bottle of additive. The concentrations of ZDDP in the additive solutions is typically up in the 5000 to 9000 ppm so you don't need much to boost that 1200 PPM too 1500-1600 PPM. (I am not sure where your 1400 PPM number for the additive is coming from....??)
The 10W30 is good to get the most possible oil flow. I think less about pressure than about flow during break-in.... the engine is not loaded in that 20-30 minutes, and even if you go out a drive it some, just keep the pressures reasonable and vary the loading.
