Pre Cycling Bio Media

Hi all, I have decided to add a APS EF-2 booster filter to my fluvial 107, the intention being that the booster will do the mechanical filtration and adding additional bio media in the 107 to replace the mechanical media.
I want to try and pre cycle the new bio media and was thinking that putting the 1kg of new bio media into the main tank space in a netted bag would start the process .
Am I right in this thought process and what sort of time scale would people recommend before replacing the mechanical filters with bio media in the 107.

And I would recommend replacing the media a third at a time with at least a week apart as the bacteria should then have time to multiply to keep everything ticking over nicely