Modelling approach for Business Content

Hi gurus

I need your opinions about a subject that has been discussed in a couple of threads but I canu2019t formulate a clear opinion.

Is it better to use for e.g. infoobject 0BPartner from business content and make all customizing changes needed there (for e.g. Compounding key for data coming from 3-4 different sources) or make 3-4 copies of it for example ZBPartner, YBpartner , XBPartner and differentiate my data there.

Point will be awarded

Thanks

John