There is no such thing as a 'safe' web based wallet. The only entity you should be trusting with your Bitcoin is you. Further to that, if you're looking for a web based wallet to send to in order to break the link between your wallet and your SR wallet, you won't be able to do that without 'tumbling' the coins. All transactions are recorded in the blockchain so you could send them to 100 different wallets before sending them to SR and it would be no different than sending them to just one different wallet. Libertas