Anyone playing with Bishop may want to consider to serve with no triggers at all. Yes, the serve will be slow, but you still can place it well and it will give you a maximum amount of time to react to return. When you don't risk (that includes serving) your player becomes more responsive and recovers better to the next shot.
...think of Ferrer, Hewitt, Nalbandian.....they rarely go hard for the lines/aces on their serve, they prefer to hit a high percentage serves into the body or slightly off to opponents weak side. That gives them more first serves in and more time to react.....but do it too much and opponent will start punishing you.
Balance is the key, mostly soft well placed serves, and some hard risk serves to keep the returner honest.