Gator,
a string bow is just a piece of non-stretch string/cord, 1/8" or so (like paracord)...cut a piece around 70", then double it into one long loop with equal halves...hold in your bow hand, with the loop ("rabbit ear")coming up and out of your fist...now hold your bow hand out, as if shooting, and draw the loop like it is the bowstring...as the loop is drawn, let the two strings slide up & out through your bowhand (along the lifeline of your palm) fist until you reach your anchor point....now, drop the loop, and pinch the two strings right where they come out of your bowhand fist...at that exact point, simply tie a knot...now you just have a big loop of cord, that happens to be the perfect length for your draw...all you do is put your bowhand thumb through the loop (making sure that the string lays along the "lifeline" of the palm-->because that is where the bow handle sits), and draw your "bow" keeping tension on the cord (by squeezing your bowhand thumb and index finger on the cord as you draw)...when the loop end catches your thumb & stops your draw, you should be at your anchor point, with full tension on the cord...from there, simply release as if shooting an arrow...It is important to mentally go through each aspect of your form as you draw; 1. stance 2. nock 3. bowhand set 4. drawhand set 5. pre-draw 6. draw 7. anchor 8. focus on frog-hair "spot" you are aiming at 9. shoulder tension check 10. release 11. reflect
The "reflect" is reflecting on your form as you "shot"
The string bow is just a simple tool, but it is invaluable as an exercise for sharpening your shooting form...you can take it anywhere (even through airport security!!), and practice "shooting" no matter where/when you want to...you will see Olympic shooters practicing with them if you watch the sidelines...