Has anybody come up with good settings for the PM 411 low wide medium looking at 200 ft trying to find billfish. There is no comparison to the settings that were on the Garmin and I'm having a difficult time getting the transducer setup properly, I use the low wide looking at the top 200 ft to mark billfish I have discovered that I am one of the only 100% furuno boats and so I'm having a hard time getting information from everyone else most of them are using a Garmin so if anybody could give me some help I would appreciate it