I actually read your post. Unfortunately, I haven't thrown too many of the discs you throw. I do however play often with a small bag, so I'll give my theory behind disc choices and you can go from there.
First off, I'm sure you are a better golfer than me, you know your shots and what works for you better, so you should really go with your first instinct. But Imma give you mine anyway.
Putter: Pick something that is something of a tweener that can also be your approach disc and can handle some shorter drives. This saves room in your midrange lineup since those discs are thicker in a small bag. For me this is the Envy, but I hear the Wizard is like a deeper Envy, so that should do you fine.
Mid: if you have a good solid stable to OS putter choice, something understable should be all you need for utility shots and a right finish. I don't know anything about the Polecat or Lex. I use a Theory, but a very seasoned KC Pro Roc would also work.
Fairways: This is the meat of a small bag for me, and by meat, I mean carry 2, an US and a stable to OS. I would go fresh champ Teebird or Glo Bird for a little more stability and having never thrown a Patriot, the numbers look like what I would pick for that. I usually go with something like a Crave and Inspire or TiStalker and River for mine.
DD: Pick a slightly US straight DD. I have only thrown the FB and OLS of your set, so I would go OLS. I currently use an Inertia. I only use it for long open shots and I find it's much more workable than a more stable DD.
If you want a 6th, this is where I put in a utility disc. For me this is something I can OH and FH well, mainly to get out of trouble. Usually I use my XXX, sometimes my Verdict, depending on my mood. And yes, I OH my Verdict sometimes. Don't judge. I think this would be the FB out of your discs.
