i did two racks at about 3.7 lbs each. I put rub on it and stuck it on the smoker. maintained around 230 to 250 for about 3 hours. wrapped it up in foil with squeeze butter, honey and a little more rub. did not have brown sugar at the house. put it back on for about hour and half. temps went up to over 270 in this stage. had to rush for dinner. then stuck unwrapped and stuck it back on for about another hour. temps at 265 or less. spread some BBQ sauce on them during this stage. THE PROBLEM: I know the ribs were done from bend test. almost broke in half from the test. so i know it was already overdone. bone was easily taken out. The middle pieces were great but the ends on both racks were dry and tougher. any recommendations? I am thinking i will try maybe 2 hours smoke, 2 hours foil, 1 hour smoke. Next time i will also make sure i have more time so i can keep temps lower and more steady. any advice?