Hello Gold_Striker,
I'll do my best to explain how I've hunted with my old X-70 being that I haven't done a lot of hunting yet with my new X-505. Having owned White's and Garrett's for many years, I opted out of both and bought the Minelab X-70. At first the learning curve was a bit troublesome but, with time and patience, I came around to understanding the X-terra. Once I understood what it was telling me, I consistently found my share of the loot, so to speak. I found a ton of sterling silver rings, some gold rings, coins & more coins, etc. Actually I found enough the first summer, with the X-70, to pay for the machine. Since then I have sold the X- 70 and my White's M6 and bought a new Minelab Safari. I hunted all last summer with the Safari and having hunted a season w/ it, I've come to the conclusion that I didn't find anymore with it than I did with the X-70. I also learned the depths were about the same between the two detectors. The Safari had a little better target separation but that's about it.
The one thing I did and would advise anyone, using a new Minelab detector, was to use the detector in AM and dig absolutely everything until you had an understanding of what targets produced what numbers, then go to one of the several patterns. It took an entire season to get to know the quirks of the X-70 but, once I did, I could bank on what was in the ground by sound
AND numbers produced on the screen. For the most part, iron was no longer a problem.
Now ... fast forward to the capabilities of the 'New' X-terra 505. Having used the X-70 for two years, I feel confident that I will do well with the X-505. Yes ... I'll have to 're-learn' the quirks of the 'New' machine but the learning curve will be much smaller and take much less time to master. It's kind of like riding a bike ... you may get rusty but you never forget how to ride the bike.
It's the same with metal detectors.
Spend the time necessary to know what your X-terra 705 is telling you and you'll become an excellent detectorist and find your share of the 'Good Stuff ' ! So how do you start? Read your manual. Read it agin and ...then ... read it again. Become familiar with your machine. Spend more time doing and less time listening to every Tom, Dick, and Harry's way of hunting. You become the master of your machine!
http://rivercitytreasureclub.webs.com/apps/videos/videos/show/13098627-the-basics-of-metal-detecting
http://www.minelab.com/__files/f/11043/METAL DETECTOR BASICS AND THEORY.pdf
http://www.minelab.com/usa/consumer/knowledge-base/faq