JMW9 setup tracking problems... need help


Hi,
After almost 20 years I decided to return to analog. Looking for a good TT, found here in Audiogon a VPI Super scoutmaster with JMW9 arm in perfect condition and decide to buy it. I follow all the setup procedure: first level the turntable; then lower to arm until is parallel with the plate (to get that I had to lower the arm up to its lowest point); use an arm load meter to set up the traking force(I use a Denon 103R cartridge at 2.88g; little bit high of its higher set up of 2.8g); and rotate the counterweight to get perfect lateral balance; and finally I use the alignment jig to setup the perfect placement of the cartridge in the headshell. Everything looks OK but each time that I try to play a record the stylus runs across the vinyl and jumps half a song or more and sounds are sometimes (not always) intermitent. In inner grooves stylus track better b ut not perfect.
Maybe this is a silly question but dont know what else to try (I recheck everyhting and all looks ok) and VPI is not open until the 7th and will love to spend this holidays enjoying this grate TT. Thanks in advance
jorsan
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Marty, sorry to bother you but need some ideas here. Today arrives the wood case so I decided to install my Denon 103r inside right away. I follow all the video instructions with all the possible care, recalibrate all the parameters, and finally put a record on my TT to find . . . one channel is not working !!!! well not at all: I can hear music but just when I put my ear very close to the speaker. Don't know what happens but I think the problem is the cartridge because if I switch the left and right connectors in the TT the bad channel switch side. Do you have any idea what happened? and, is possible to fix it? I do my best working with the Denon but .....
Just switched the 4 cables that goes directly to the cartridge (the 2 rights with the 2 lefts) and found that the problem goes from left to right so, this is a proof that the problem is not the cartridge but the cables ... am I right?
I think my laast post is wrong, what it prooves is that the cartridge is the problem. If Im right .... I have a serious problem!!.
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