I remember being obsessed with getting all the different parts to the space sets but I recently started to look at the stats of the items themselves instead of their combined abilities. The Jem'Hadar shield has a +10 to structural integrity! That is essential if you're flying in an escort. I have a deflector XII that has a +26 to shields! Even better! So, I started thinking...what would be the best possible build you could make if you mixed and matched sets now that the Borg set has been entirely hobbled?