Yes, I have to agree with Wal and Brad, In the short time i have been panning, I have gone from the basic black 13" pan to a super sluice, I don't think I will try anything else for working in the creek or the back yard, the deep riffles trap everything, I have used a safety pan at home and tried to get some very fine gold out of the super sluice and it did not happen.
The super sluice will take a bit of getting used too, but once you are confident on the use, you will fly through the big stuff till your down to your concentrates.
The top two tips I can give are:
1. Do not over load the pan, I usually use a 1/2' or 1/8' sieve and only go 3/4 full.
2. Do a very good stratify at the start (at least 30 Seconds side to side round and round back and forth) and you should be good to go.
The only down side is they are a bit heavier than a "regular" pan and if you are panning for many hours you may end up with stiff fingers from the way it sits in you hand when down to the heavies...
As far as roughing up the pan, just run a few pans of river gravel through to take the shine off and you should be good to go.
I have a small 10" Garret clean out pan that I use also, this works ok, but you still need the big base of the Super Sluice to get the swirl going, practice practice practice and you will get better every pan!
Good luck
Tone