I own several rigs , and now a proud owner of a Kraton , I also have a Mt 410 , really looking forward to comparing the two , but I keep watching all these people talking about emmediate upgrades on the Kraton , jeeze ! $500 and open the box and fix it !? Is this diff shimming a must right up front , the the tower brace is a must ? The servo is out of there , put in a servo brace ? What the H , E , double hockey sticks is going on here , is this just if I'm nuts enuff to put in the 6s or is all this really needed ? I've been in this addiction for 30 years now I'm very aquianted with needed and not needed upgrades but all these reports I'm seeing has got me pondering , any help on this is very appreciated