godigit1 i went to the site today looking for a new one they are making 15 x 17 for the tejon and spotted the one for the GB so thought i would share about it sense every ones looking for a bigger coil that works, i only have the one in the pic with the 705 its deep on the 705 i would say a quarter at a foot in good ground easy i don't dig that deep in dirt to hard that's why i don't use it in the dirt will use on the dry sand but.
so i am only guessing on the GB but would say like they do an extra 30% depth my main reason for posting this up was to let people know they are real and they work.
i know its not much help for you and the Bug but its all i got 1st hand.
but i am going to buy 2 more coils from them one will be this one but wont be for a few months yet got to save up.
coil was very stable on the 705 pin pointing is a bit harder but having said that i am a novice on the 705, but just from my understanding the GB is better at pin pointing than the 705 anyway so.
AJ