OpenRocket and droue chutes/designs

I'm looking to sew my own chutes and use one as a drogue. Does simulating the drogue account for the motor burnout weight, not fully loaded weight? I would think it does but I haven't ever seen anything. Second, I believe that OpenRocket assumes on recovery that the rocket is a point mass with no air resistance. This would mean my rocket would descend slower than simulater because of the rocket air resistance. Lastly, with making/designing a drogue chute (classic hemispherical chute) are there any best practices, best design for what makes a good drogue? Thanks!

Open Rocket accounts for the burn out weight properly on a simulated launch, so there's no need to monkey deeper in the mass settings. Yes, it's only mass and not air resistance since there is really no way other than actual flight to know what orientation the pieces will fall in. Believe it or not, OR is pretty good at predicting things as long as the input is correct. Most of us easily get within 10%, and with a little refinement +/- 5% can easily be achieved in just about every parameter.

There are no rules as to what type of drogue you want to use, it's up to you.

As to best practices, there are LOTS of ideas that work just fine. There are LOTS of parachute making threads here.