I have had no problems pinpointing with my Infinium. After getting a signal, I swing in very small sweeps a few inches from side to side and slowly back off the target until the signal stops. The target usually always just off the toe of the coil.
As far as target readout, I have found more gold with the Infinium than with any detector I have ever used. Been hunting since about 1988 and have used my share. This is not my first water machine. I only go after possible gold type targets which is the Door Bell sound or High Low/Ding Dong sound on the Infinium. I dig Silver signal when bored due to lack of targets. That is the beauty of the Infinium to me. With my Sovereign, (which I like alot also), gold can be a very large range of signals some very near coin range if it is a large piece of gold. You can get lazy with it and start ingoring those higher range and very low range audio targets. With the infinium, large gold, small gold, all gold, platinum, and palladium, no matter the Karat, gets the doorbell sound. No guessing. Dig all High/Low signals and it will produce the gold. I am very pleased with the performance. I ignore the silver signals giving me increased time to look only for the gold. Thus more gold finds.
It is no magic bullet though. You will still dig the aluminum trash, pull tabs, etc. Just like all the others.
Good luck,
DaChief