Full shukaku doesn't have auto defence and he can only use bijuuball in full mode. Are saying gaara sand can catch up with kcm naruto? Gaara would not even be able react to naruto at all since he is faster than A. Naruto can counter any sand attack with either chou odama rasengan and higher attack. Anyway you won't change and I won't change my opinion so let's just agree to disagree.
gaara has the auto defence,and he is the one in control when he goes bm too,without any shukaku personality problems,also,he and shukaku are partners,so shukaku can act as his auto defence anyway,so he will still have it,and speed is invalid,this is a desert,nowhere to run to and he can react to his speed just fine,he made a city sized sand shield in the second it took for a nuke to explode,and reacted to A while outside the room he was in. His sand was unfazed by a c3 bomb,joki boy's explosion and it even stood it's ground against a meteor attack that altered the landscape,a rasengan is doing squat.