Talk:Key pool

I see the advantage being:

1. I backup my wallet
2. I sent some money
3. The 'change' of the transaction is sent to a new address in my pool
4. My harddrive crashes
5. I restore wallet from backup
6. My 'change' is intact because the entire pool was restored.

Concern:

2.b. I make 300 transactions
..
6.b. Have all lost the 'change' to all transactions after the 100th?

Solution:

3.a. The 'change' is sent to a random (or cycled) address in the pool without generating a new address (key pair).