I heard a lot of good things about the 8x6 sef coil . I have a dfx 300 so I'm looking for a different coil. i got the dfx at kelly co and am looking for another place to buy from . I will not give kelly co the satisfaction of getting my $ . they were great when i got it but 1 year later had a small problem with the machine and when i cal the lady was of no help, and wouldn't offer any advice except whites #. and when i emailed them i got no response at all . so i need another dealer that will be willing to help me . i will be working lots school yards playgrounds and that with the new coil . i can use the stock 300 coil for beach's. i need help finding a good dealer with Good costumer service.