Fixing HnB Junior 45 topcase with Trax 37ltrs side panniers
 

Will this combination work well together? Anybody tried?

I assume i'll get some problems opening the side cases when it is mounted together. Thus, i might need to dismount the topcase when i need to open the side cases.

I dun like the trax topcase and i'm getting the trax sidecases for a steal so just weighting my options before i buy the side racks...