This is a tool I'm quite likly to use, I have a "cheap" ish zircon, no display, it has 2 lights one for edge finder other voltage it can be a bit glitchy, sometimes you will see the stud, sometimes not, other times it's a pain moving it over the wall. it detects voltage a lot of the time I...

So, my venerable Ryobi 18V drill/driver (model P204) is dying after 12 years. I already have a charger and multiple batteries, and frankly I've been quite happy with Ryobi, so I just want to replace the tool. But there seem to be at least 3 different models of 18V, 1/2-inch Ryobi drill/drivers...