hi yall ok so my first mess of a question,
i bought a bounty hunter quick draw II to try to get started back into detecting, i just started out about 10 years ago and broke my back so i never got to learn, so now im able to move around again and id like to learn.... so i read the papers on the BH and took it out to give it a try, found a couple rusty nails and some aluminum foil

but i cant seam to get the same "tone" when i go over the coil with something, i can wave a quarter over it back and forth and i will get 2 or 3 different sounds.. then if i bury a quarter about an inch in the ground and go back and forth over it it will make different sounds AND show it from 1" to 8" deep.

what am i doing wrong? i did have it on all metal because i wanted to find "everything" to start out with, thanks for any and all help..... shan