INITPOST, but in parallel?

[notstarboard]

It occurred to me that much of the code I'm currently running via POSTPROCESS doesn't need to wait for the forecast to complete, since it only relies on input files. Because of this I thought to split these pieces into an INITPOST task with the hope of kicking them off near the start of the forecast instead, but this doesn't help since ASGS will wait for the INITPOST task to finish before kicking off the forecast. This behavior does make sense, but it got me thinking about alternatives:

Is there a way to run custom code alongside a forecast with ASGS? This would allow us to deliver forecasts ~5-10 minutes earlier when running with NHC forcing or ~2.5 minutes earlier when running with GFS forcing.

[notstarboard]

I think I am being stupid - I forgot that the code is specifically waiting for the batch job to finish! This should work just fine by having script 1 launch script 2 and just letting script 1 finish.