I agree that network can be very funny most times, and it's a bit difficult to tell when some wallet has fully synced or not, until you've made an attempt to make a transaction. Do you have an idea of the average time it takes a wallet to fully sync?, because I think there might be some cases where a transaction would fail to broadcast despite using the actual fee at that point, but after maybe refreshing the wallet or waiting for sometime, that same transaction would end up broadcasting with the same fee as if nothing ever happened before. So, what could possibly be the average syncing time?.