Ok yes, thanks Cellard and jackg, I think I understand it...what you described is helpfull as I only need 2 versions of the blockchain to achieve it.....and is otherwise what I was thinking.

The fact I cannot use my original address afterwards I find slightly worrying as I use it in so many sites....but hopefully they can update address and all then use my new btc address.... hopefully

So if I wait until after the Btcx2 fork, do I `dig` each new forks currency from the same original bitcoin address? Or does the new currency value follow where the original bitcoin balance is .... for example:

... if I use btc address 1, send it to btc address 2, then `dig` btc address 1 for BCC from BCC blockchain(as described)....when I then do the same to BTG would I `dig` from Btc address 1? As I`m thinking that the fork will hold value that was present at the time of the fork...in your explanation we move my balance of Btc to my fresh address, which shows that the balance is held on the blockchain at the time of the fork and doesn`t necessarily follow the actual balance...unless as you warned someone were to `dig` btc address 2 before I had `dug` Btc address 1.

Thanks for understanding my caution.