I was building a droid squad though it's on hold at the moment as a few other 'projects' are more important. I do think droids are viable on offence 777, just think they may be weak on D compared to Rex/Wiggs? I've never ran a droid squad so I don't know, it's an honest Q lol.
I will finish my droids off at some stage, likely a couple months and they'll be done, so your squad/posts give me an idea of what to do with them, so thanks for that :)
PS - Does Grievous have any place in a droid squad? I've heard most say no, but he's one of my favourite toons lol
