For protection, Trojan. Always use trojan.
If you consider it a safe book, no risk in leaving your money there. Never deviate from your strategy, whether you are up or down. Don't chase or load up. The only thing you can do is, within your money management profile, use your new larger bankroll as the basis for your unit bets.
If your bankroll was 1000 and you used a 5% wager you would be at 50 per unit. If you increased the bankroll to 2000, and were willing to risk all of it, you could increase to a 100 unit basis while maintiaining the 5%. Me, I would stay at my base unit of 50 even when the bankroll increased, becuase you will hit a bad streak.
Another thought would be to pull out a portion of the winnings to try a new book you always wanted to and collect their bonus (I keep telling myself if I ever get enough money I'll load at Pinnacle, but never quite make it there). Use it as a safe out or make a small deposit at a P2P in case you make a wager in error and the book won't cancel it, can reduce the risk that way.