My 2p:
Gold for me is saving in real money. I'm only trying to preserve the real purchasing power of my savings. Any gain over and above the real rate of inflation is a bonus! I do not have the time to read up on or dedicate part of my free time to attempt to trade any of my pot.
No doubt if you know what you are doing and have the time then the trading approach Dr Bubb takes can give better 'paper' gains in the short term. But there is as much chance of an amatuer like me losing money. I also agree with those who have pointed out that the trading approach is great until the system breaks then all your gains plus initial investment are gone. The odds of this happening at any time are in my opinion are quite high and I'm not comfortable risking it.
I have read enough to convince myself that the long term buy & hold physical is as good a strategy as any for wealth preservation. Just take a look at the 6 month, 1yr, 5yr, 10yr kitco charts. They dont lie.