I found a great deal on a super10, I like that cart because you can upgrade to the 30 by replacing the stylus. The only thing that makes me a little uneasy about changing this cart is the way the dual headshells are made. Im not too sure how to set overhang and such. The only thing i have to aid in chainging the cart is a paper protractor. I need to get my hands on a service manual because there is a problem with the lift mech that I can't put my finger on by visual inspection, and that would probably make changing the cart a little easier as well. I appreciate your help on this.