I think with a swap it is appreciated, not demanded to use a GDS kit?
In my case: I bought a mini kit from Louise at sept. 16 (this year!) and used it for the progressive first step, first of october.
With the upload I went to the shop to get the right link... no more Louise!
I wrote in the credits: former GDS-designer.
For organizing: I have the kits in 4 folders, in each folder the kits and the preview separeted.
It works for me ;-)