Can you explain why do you believe that 6 dealers will produced more ''normal'' results than a single dealer?
And by ''normal'' you mean balanced?
My opinion is that the new dealer might or might not carry on the previous tendencies.
I've never understood why casinos are changing dealers so often, one thing I can say for sure is that to do so there must be important reason...perhaps the answer is mutual with why the wheel's pockets have been numbered in such bizarre way, instead of 1,2,3,4,5...
Can you imagine why?
If there wasn't serious reason then they wouldn't do so...
After giving serious thought on the particular matter I've concluded that since this is a very repetitive procedure it could affect the individual to act mechanically, thus activating what we call ''muscle memory'' and generate more exploitable patterns.
Therefore if pockets were numbered in their arithmetical order like 1,2,3,4,5...etc (starting from 0 point) those patterns would be identified easier by everyone, without the need to memorize the whole wheel's layout.