Some good information that you have provided,did you notice any additional depth after the upgrade especially on small finds,i am still try to ustify the upgrade but i still cannot see that i will gain anything on my pasture and farmland permissions in the UK,i dont have hardly any problems with EMI so the shielding aspect is not a main reason for a possible upgrade.
I guess and i of course could be wrong but if you hunt in say a park enviroment in a built up area with alot of EMI issues then the upgrade would be a very wise move,but if you are miles away from urban life and only have the odd overhead powerline then i rarely have problems with EMI.
The clock is counting down to make a decision i think its sometime in March but at the moment the folks who have had the upgrade over here as yet are still noit shouting from the roof tops how good the upgrade is,i am thinking that i would have seen alot more feedback on the upgrade that what i have seen.
Good to see you are liking the new machine.