Kuzma SME or Graham need to upgrade arrrmmmmmm...

I currently use modded RB300 on my Michell GyroDec that I want to upgrade.
I want to hear opinions about Kuzma arms in compare with more traditional SME or Graham. How these arms perform with different decks?
I ask about Kuzma arms since they're more affordable that SME or Graham.
You're near heaven, just need to throw away the SME-supplied tonearm cable...

By saying modded RB300 I ment that supplied cable is thrown. I still feel that this is RB300 that I want to upgrade. Meaning having the arm with all adjustments to be made by myself.
Get the upgraded power supply or the platter upgrade. I think these will make a bigger diference than the arm.