Hi,just a few questions about the mxt.I've read that the mxt can be quite noisy.....is this only in the +1+2+3 area on the sensitivity........does it stabilise at lower settings.Sometimes i do not need high sensitivity settings as a lot of my targets are small and shallow in amongst iron.In this situation i would need the machine to be stable with no chatter.Also the pro version comes with the 12" coil......please give me an HONEST opinion on the depth of the machine with this coil as depth is another prime consideration on some of my sites.....in this situation i do not mind a little chatter to get the extra depth.Basically i want the machine to be quiet at low sensitivity settings but also deep even if a little noisy.....will the mxt do both??Thanks for looking.