The digitals are better at centering and have more power just off center than a analog servo. If you are banging the sticks and don't care about precision. Use something like the 3305 Futaba servo. I use them in a Funtana. They are very strong at 99oz and are less than $40. I use 9252s in a 72" yak. These are 99 oz digitals. These are great servos but cost closer to $100 each. So it kind of depends on your flying style.
You are using the same RX I am. So it is compatable. You may have to upgrade your battery. The digitals will use a little more power. The throttle servo is no big deal. Use one of the 3004s on it.

David