First, let me say I'm really looking forward to trying this recipe this spring!
A question re: the extract recipe, would you need a bit more than 6lbs DME to get an OG of 1.065? Punching this into TastyBrew (5lb batch, all grains set to "steep" rather than "mash") I got 1.059 OG with 6lbs DME, and had to step up to 6.6lb DME to get up to 1.065 OG. Maybe this just reflects different assumptions b/w TastyBrew and BrewSmith re: sugar extraction from steeped grains, but would be interesting to know if extract brewers are able to hit 1.065 OG using the 6lbs DME.
Yes. I think it might be misleading to call it an extract/PM recipe. The 1lb of Munich needs to be mashed. If you sub the Munich Malt for Munich extract, you've got an extract recipe.
I'm not even sure what steeping Munich malt would do.