Ken, How you use the coil may help decide which one you want. I have owned both for my MXT and found both to be great coils. I honestly believe they provided better depth and obviously more coverage than the stock coils. My testing of each indicated a 12% increase in coverage with the 14 compared to the 12.5 (simple math) and a slight increase in depth. (difficult to measure % in coin depth as once the ground is disturbed, the variables of soil condition come into play) However, I found the 12.5 to be easier to handle than the 14 and felt that the amount of time I was able to use the 12.5 more than compensated for the variations in depth and coverage. I could detect for longer periods of time and it was also easier to work the coil around obstacles. Every little bit of additional weight adds up when it is suspended at the end of the rod. Most of the areas I hunt are either grassy areas or rough terrain. When hunting areas like this, I found that I had to keep upward pressure on both coils to keep them moving across the ground. I have back problems too, and if I didn't keep pressure on the rod, the coil had a tendancy to snag on ground clutter. As you know, raising the coil off the ground to detect is not making full use of the depth capabilities. If someone were to make a solid faced coil cover for the E coils instead of just the ones with cutouts, that may help keep the coil from snagging grass,weeds and clumps of dirt when swinging it. At this time I don't know of any. Frankly, if you are a beach hunter and are sliding it across the sand,the additional weight of the 14 compared to the 12.5 or the snagging effect may not be a problem. I have also read about guys who put the coil on backward. This places more weight toward the operator and less out at the end of the rod. I haven't tried that, but it sounds sensible to me. HH
