I am considering buying 3 sv 500's for my router project. I picked up 3 Electro craft E543 with 1024 line encoders. Any one have this combo, if so how well does it work for you? I am also interested if you have a different set up with these drivers. Are they easy to tune? Would you recomend them? The price is great if they work well or would I be better off with holding out and buying gecko's. Thanks