FWIW. My Meade 10" (254mm), f4.5, (1140 mm), sonotube dob is the same one that is in the Meade cataldog. Being sonotube it is much heavier than the thin 'steel' tubes. (has more mass). The diff in length I think you'll find is just 60 mm..

As Paul has mentioned, you may have a few probs with the breeze...mainly due to it's lighter mass...
HTH..

L.