Personally I have had and still have problems with Pennies-qt when he placed an old wallet. When version 10.2.1 abe was announced, I took all my coins in lots of Cryptsy 99,999,999 (bound by Cryptsy) and that has led me waaaay wallet stakes
Well, in the last days (between blocking and blocking) I am getting my coins to transfer to a clean wallet and lots of 900,000,000 new wallet works PERFECT. When checking anyone having problems with their wallets, because I will IF I buy this coin may have a future.
Greetings.
It's definitely a good idea to repackage all those 99m transactions into larger transactions because if you have more than a couple of hundred transactions in your wallet it can become unresponsive come stake time. If you have a lot of coins it may be advisable to build several clean wallets each with no more than a couple of hundred transactions.
998 million is about the limit if you want it to remain stakeable but you need to be careful not to take the total inputs over 1 billion or the wallet crashes and you have to run
repairwallet when you restart it to claim the transactions back.
Coin control can definitely help with selecting appropriate inputs to ensure this never happens but I personally find it easier to send 2 payments of 499m to one address and then later sending 998m from that wallet to a new wallet so that exactly 2 inputs equals the 998m output.
It's also useful to send using
sendtoaddress from
Command Line Banking as it's a lot faster than doing it via the GUI.
sendtoaddress PenniesAddressHere AmountHere