I've had the 10X12 coil, uh 3 times, 3 of them. I've had the 6X8 coil, uh 2 times, 2 of them. The 10X12 needs coasters on all 4 corners if you ask me, it's heavy! The smaller coil 6X8 is a nice coil but still heavier than most all the coils out there, about the same weight as the pro coil. I've also had the X12, X8, and X5 by Sunray. The X8 Sunray is a superb very light coil that is pretty dang deep. I've also had 4 Pro coils and have one now that I will keep. What I found out going through so many coils is that for a medium sized the X8 cannot be beat. For a large coil, the Pro coil cannot be beat. I personally just don't have the mindset to run a 5" coil of any kind. The ETrac separates too well to run a coil that small imo. I'm currently using for my small coil a 4.5X7 Excelerator coil and it does a great job and is very light.