A couple of things... When I first got my bandera, I used it with no mods for quite a while. I was feeding it pretty frequently also. Temp control got easier as it built up more ash, as the ash kept the fire from breathing as well. I did a fire grate mod and WOW. Temps took off because of the better ventilation. I could run 235 - 250 with top all the way open and intake almost closed. I would suggest you build a fire basket. I almost fill it with K blue and wood and light about 1/2 to 3/4 of a chimney and dump it on the smoke chamber side so the fire has to burn back towards the vents. I usually cook at 275 to 300 now and have no problem holding those temps with the intake 2/3 to 3/4 shut. Nice clean fire and I get 4 to 6 hours of burn time depending on outside conditions.
NB Bandera with baffle, fire grate, and charcoal basket mods
Modded ECB with Rotisserie
Superfast splashproof Blue Thermapen
Camp Stove and Cast Iron Cookware
Branndair Uisage Beatha Cuallach