Not sure what Galfer kit you have, they make several, but I can help you with some of it, obviously from the istructions you purchased a two line kit, both lines will come from the master cylinder using the double banjo. Your longer line will go to the left caliper and the shorter will go to the right, you may have to remove the line guide mounted to the tripple tree, I removed it and used a rubber coated bendable cable/hose stay I had laying around in the parts bin, I did not like the look of the bare metal cable guide rubing on my lines. As far as grinding the stops, i am assuning they mean the flat tabs on the caliper where the line and banjo fits in,i would not want to do that either, I would probably find a different set of lines if they require that, but thats just me, it probably wont hurt anything.
They could also be talking about the tab on the master cylinder. My Galfer superbike lines did not require any grinding. PM Sergio, he is on the site and is a Glafer rep, so he can definately answer any questions if you dont get answers on here.
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