I also started with a Eurotek Pro. Will the F44 be better? Yes, but IMO more from the DD coil than the ground balancing, unless you know your local soil gives the ETP trouble in that regard. Will it be better than a Simplex or Vanquish? Probably not... but that is still a screaming deal you got, and if recent ebay listings are reliable, seems like you could flip the F44 and end up with a free pinpointer or even a little profit.