Roast Style and Flavor

Hans Damgaard and I were exchanging e-mails about the best way to roast Guatemalan coffee.  I am only an amateur home roaster, leaving it to the experts of the world to roast my coffee to perfection.  Guatemalan coffee is my all-time favorite coffee and any time I've had it, it was roasted dark.  Also, any advice I'd ever seen on how to roast it agreed.