Originally Posted by FreightDogs

In the 99, it will be a Garmin 650 or a Garmin 750.

That training failure rate is not accurate. Each aircraft is going to have a different percentage.
Our recruiters will go through your experience with you and make sure the BE99 as a DEC is the right fit for you. With what you've mentioned so far, it sounds like you'd be a great fit for the BE99.
AMF training is tough, but only because they need you to be trained/prepared. Study what they send you, have a good attitude, and you should be good to go.