Hey iebrandon! Welcome to the Forum! Let me say as Togg did, the real experts on that rig will be along shortly...in an effort to help them best guide you, please provide a bit more detail as to your location, experience in this Sport etc...example:
"Hey everybody! I live in Bessemer Alabama, I'm 16yrs old, just got a F 75 for Christmas and this is my first detector! I'm stoked! As you know, Bessemer was founded in the 1800's with the intent of becoming a major player in the production of steel. Lotsa coal and lotsa iron ore in the area. The Bessemer smelting process made this location a viable contender. That being said, the dirt here is very hot. I want to find old silver coins, and I also want to hunt CW relics when possible".......Or maybe this:
"Hey guys, Ive been hunting for 30 years with multiple rigs, i'm 67yrs old so I know all the basics and have found a heap of coins, just picked up a 75Ltd...I live in Otumwa Iowa, all I need is a few key generic 'go to' settings to work silver coins in the deep loam, with an occasional Relic hunt thrown in"...
See? two entirely different situations for the Xperts to address...so do a bit more of a detailed info dump so the Brothers can help you....
Its too hard to give you the correct answer without knowing the backstory about yourself and your area....just trying to narrow it down to get you off on a successful experience is all, plus, its a nice introduction for you to make here...
These F75 fellows have spent a great amount of time learning what you ask...so you cant expect much help from a drive by hit like this....anymore than a stranger with out of state tags asking the locals at the boatramp about the local fishing hotspots or lures to use etc... do a great post, and I bet you get some help!.....
Mud.