I have the 2012 Flagstaff BR28TSC Off-road and I have found with the extended length and frame clearance to the ground I had trouble getting my pup sturdy enough so that when someone rolled over in the night you would not feel it. I started by using Bal x chocks between the tandem axles and this helped a bunch but needed more. Figuring the less I lower the stabilizes would help so tested this theory with a bunch of blocks and all was good. To resolve this without hauling a bunch of blocks I made a set of four, 2"x 12"x 18" stabilizer extensions. (How I made them) I picked up a 2"x 12"x 12' Pressure treated board, cut it into 18" pieces, giving you 8 equal blocks. Then each board will need an equal 2" slot cut into the center and this must be done very carefully so there is very little slop in the joint but still be able to pull them apart easily to store. They also must fit level top and bottom to increase stability. Once done you just slide the open joints together to form an X block giving you a 12" tall stabilizer pad. I then use one orange stackable stab block on top X pad for the stabilizer to set on. Made a 100% improvement with the stabilizers not extended to their max.