That's cool...I think you'll find it will work well for you. Some folks also use a tool like a scrawl which is more or less a metal pick for sticking in the dirt to hit your find. One could be made from an old screw driver by just sharpening the tip to a point. Although, these work best for bigger objects.
Also, concerning other detectors, a lot of them come with two to three piece shafts that can be shortened to any desired length....at least the ones that I've owned have. If and when you look for another one in the future, keep an eye out for the ones that have this.................then it won't matter when you need something longer or shorter.
They also have on the market hand held metal detectors. One for security purposes and the others for metal detecting. Of course, the good ones are somewhat pricey, but those are good for pin pointing down in a hole you've just dug.
All in all, welcome to the wonderful world of treasure hunting!