going to oreder an e trac this week Iv read so many different posts i dont know if im coming or going lol I v read some things about the sef 10x12 coils for the e trac now im assuming the coil that comes with the e trac is the pro coil?? wondering if it is worth getting the sef coil?? and if so why? Iv been using an x terra 70 which I will keep for gold... but looking foward to the e trac and want to start out with my best chances...Iv read posts where it was stated to get used to the original coil first. my though that if the sef coil is much better why not get used to that one right away?? thanks for all the posts here this is a great sight for us beginners to learn and observe. I also love seeing the great finds makes me druel and want to get out that much more. Minnesota here looking out at the blizzard #*!% also to add I like to coin and relic hunt have many old homes to hunt in my area 1850's thanks and happy hunting