I had a good reason for wanting to try the 14", even though most of my detecting jaunts plant in me among some of the trashiest, iron infested sites you could imagine. I have a few close friends I detect with, one of whom has been killing us with his silver coin count. Last year he found over 500 US silver coins, and I am NOT including the low percentage 'war' nickels. Only silver dollars, halves, quarters, dimes and half-dimes.
My friend, Chris, got started in the hobby when he bought himself an XLT for Christmas in '95 or '96 and he did quite well with it. Then he got hooked on the Minelab Explorer XS and then 'advanced' to the Explorer II. <STRONG>NOTE:</STRONG> <FONT COLOR="#ff0000"> I am NOT suggesting that the Explorer is a superior model. It is mostly his technique which works.</FONT>
Chris uses the 15" WOT coil perhaps 90% of the time. Not for any great depth advantage, but for the benefit of <EM><STRONG>coverage</STRONG>.</EM> He selects sites that have had a lot of human activity, especially those that were well used from the 1920's thru 1960's, such as city parks, school grounds, and sportsfields.
Chris makes use of the audio and visual Target ID as well as the depth gauge. Seldom will he go after any target that reads much below that of a zinc cent or Indian Head cent. Also, he tries to concentrate on recovering only those targets that the information <EM>suggests</EM> are over 3" deep. Thus, by cherrypicking the higher-conductive coins and ignoring most shallower targets, be them good or bad, Chris concentrates on those targets that have a greater potential to be silver as well as deeper. Most of his finds are coins in the 3"-6" range, with some coming from the 6" to 8" or possible 9" depth, but for the most part, 8 out of 10 are probably about 4"-6" deep.
Not caring for the heavy weight and awkward feel of the Explorer, I wanted to give myself a little help in trying to match the performance he was getting. Most of that performance wasn't really do to any depth of detection, but due to the <EM>coverage</EM> per sweep he was getting using that 15" WOT.
Preferring the 'feel' of the MXT and the external knob adjustment, I mainly wanted to try and get similar benefits by going with a larger-than-stock widescan coil. I was a bit apprehensive about ANY aftermarket coil, but the Excelerator seemed to be the one that might provide the performance I was looking for.
I put both a 14" and 5" Excelerator to the test with my MXT, and I used other makes and models to do some quick in-the-field, side-by-side comparisons. One model I got was an Explorer and I borrowed a 15" WOT to do the side-by-side with the 14" on the MXT.
Before I proceed, I will have to just say that the one coil I especially wanted to check out was the 5" simply due to the fact that I most often hunt trashier sites, and I prefer round coils to elliptical, and white coils to brown or black colored coils. The 5" coil I used the most first and was totally impressed with the performance. I had my 5.3 Eclipse, which is a 6