Pinpointer is absolutely the way to go. It'll cut down on recovery time by a HUGE margin. That and you'll find for some finds it'll also reduce the digging requirement. Without a tool, you'll dig a bigger area, and have to sift through more.
And also check out the local requirements for where you intend to hunt. Some cities have ordinances in place that either 1) restrict Metal Detecting, 2) Limit locations and equipment 3) specify EXACTLY what you can use. Some cities even require permits (very often free, but you still need to have them).
For example, my city allows Metal Detecting without a permit, but you cannot use anything other than a tool that is less than 8" in depth, and no more than 1/4" wide. You MUST cut flaps (no full plugs allowed) to remove objects, and "carefully replace the dirt and flap, restoring the original condition."
The Lesche digger, in my opinion EXCELS at this task. It fits the bill, and cuts incredibly cleanly. The fact it's not "bent" much allows the blade to slide through the turf easily (if you're right handed, you'll find the left side serrations are probably what you want).
I also carry a thick steak knife (sounds funny, but it cuts sod like a beast), and I use it for digs that are less than 3-4". It's easier.
A carry bag is a must as well! I have several Garrett bags (like them alot), and I've also go a couple satchels I picked up at the Goodwill. You're looking for a satchel that allows you to have a big bag to put garbage, and a smaller zippered pouch INSIDE the big bag. This allows you to put both garbage and good finds into apparently the same location. There will be sometimes you'll find good stuff and you don't want to draw attention to yourself. And if people ask what you're finding and you're nervous about sharing, you can just reach into the pouch area and pull out a handful of can-slaw, bottle caps, and other garbage.
My personal line in such situations is "I get paid about $.60 an hour to pick up trash!" It usually keeps things light, and if you ever are pressed "did you find anything good?" and you're nervous, just tell them about how you did at some other experience...
The idea is to be an ambassador for the hobby, while keeping yourself safe.
Cheers!
Skippy