Grab a build from these forums, avoiding ones that limp along on "this isn't a leveling build so you'll need that Incarnate power before this can really work" BS. That's weakness showing, I hate that because I level my toons.
I usually strip out the Boxing/Tough/Weave too, sometimes even Leaderships (unless a Defender or an MM). I hate wasting a choice, and having toggles I might not be able to afford End-wise for a long time. Now to find something else more fun and fitting for my concept.
My Mids take on it doesn't look too bad? Off to the races.
The end. I don't have time for play testing. Seriously, I work 40 hours a week, have friends and family, etc. I don't have the time to throw away on that.
If needed, I might go back and and re-tinker a bit to make the build less awful if it's not working out, but that's doesn't happen too often, usually it's good enough.