This is not a high-security solution IMO.

If you have a virus or keylogger it could broadcast your seed when you go online.
The safest method is use a dedicated machine that is offline permanently.

No, you keep using it until forever.

Electrum wallets can make unlimited addresses, you don't only have to use 5.



If you are trying to ask "Should I delete my wallet that I created more than 5 addresses for using gap_limit?"

The answer is "no". As long as you don't leave a gap in the addresses you use, it doesn't matter.

Electrum will by defauly search for "the first 5 addresses with no transaction history" and once it finds that, it will stop searching for new addresses. (this is called a gap_limit of 5)

If you set the gap_limit to 6, then use ONLY address #6 to store bitcoins. Restoring that seed by default in Electrum will only show 5 addresses, so you will see that and think "OH NO I LOST MY BITCOINS!"

But in reality, if you send bitcoins to any one of the first 5 addresses, it will generate the 6th address, and your balance will be found. OR you can reset the gap_limit to 6. However, if you leave your electrum seed after you die, your family might not understand gap_limit and think you have no bitcoins, even if you know your #6th address has bitcoins.

You can use the wallet, as long as you don't leave a large gap between the addresses you use.


Also, a reminder: THE SEED I POSTED IS NOT SAFE. IT IS POSTED ON THE INTERNET AND ANYONE CAN SEE IT, SO DO NOT SEND BITCOINS TO IT.