Do an ice bath and a boil test. If your ice bath is accurate, it's probably fine. Boil test should read ~211, despite what people say, I've NEVER seen water boil at 212 except in my chemistry and physics labs where we were using distilled water.
Been coming up a little short on preboil gravity, I think, but I usually overshoot my preboil volume too. I can't always trust was Beersmith tells me for that stuff. Brewhouse efficiency is usually between 75-80%.
As a shameless plug for myself: If you don't trust BS2, check out my mash calculator at http://pricelessbrewing.github.io/BiabCalc
it uses a small modification of braukaisers formulas to estimate, and then measure your conversion, mash, and lauter efficiencies. Estimated gravities are based on a 36 ppg grain weighted average, once I add recipe formulation it will pull from an accurate grain database.
In the mean time, I'm brewing some smaller batches till I can get this sh*t figured out.
I've been brewing small batches for the last 4 months. Big fan. Lots of diversity in my pipeline. So many beers to choose from