I just got the 8.5" Widscan, and it tested out about 1" deeper than the 7" coil but it came with a long cable , i figured that wont be so badd, but when i got it """ whooo it was long I had more cable sraped around the shaft than the detector weight, i had to shorten it , so i gave it a try , and found out i needed three hands, and tried 4 times to get it but i ended up melting the 5 pin conector and had it so every thing was touching everything els so i lost this one . cant put anymore money into it it coast me 90 bucks to learn a lesson . it is for sale on the accesories forum for 20.00 as a reparible . bran new. you really have to know what your doing when soldering , without a holder of some kind it gets really tricky