Custom.hal

Hi folks.

I have used Pncconf to create the initial hal- and ini-files for my machine, just to get a starting point for configuring my machine.

I am now working on finetuning and also adding additional functions to my machine-configuration.

I have made these changes/additions in the hal-file created by Pncconf and not in the custom.hal file, even though I have read several places that any additions to the machine config should be placed in the custom.hal file.

Are there any drawbacks to making all of my machine-configurations in the hal-file created by Pncconf?
Is this advice only recommended in case I need to go back to Pncconf to make changes from there?