I had both too.. 6R and now the mbx7.
The 6 to me felt no so good..
Where as the 7 was great.. In my hands..
I was going to give up on the 6 when I had it and run back to kyosho.. But I said I try the 7 bc they changed somethings around.. And wow.. What a better buggy FOR ME..
I was now running with the leaders and winning some races.. Where as with the 6 I never was in the picture.
So what I read here I must like a loose buggy.. Buy my 7 don't feel loose to me....
Very easy to drive and able to be pushed hard and stay consistent..
.. So sir if you are use to driving a 1/10 Nitro truck the 7 is for you..
Just $. 02