I love how it took 7 replies before someone that actually did it chimmed in. As you can see the only real oral stuff in preflight prep is knowing the airplane. For the flying stuff, you'll have an aborted T/O, steep turns, stalls, engine shutdown and restart, unusual attitudes, hold, two precision approaches(one single engine), two non-precision, circle, missed, landing(from the precision, circle, single engine, and no-flap). Realize the examiner can combine a lot of those tasks. For instance I did a non-precision single engine circle no-flap to a landing. I was worried about the ATP as well and I thought it was actually easier. Its gonna be the same as your commercial multi just more approaches. Of all the powered land airplane FAA checkrides I have taken I thought it was the easiest one.
I think the FAA wrote the ATP PTS they geared it more towards how most people obtain their ATP. For their initial airline check, or getting a type rating for a corporate flight department. Realize some of the stuff in there you aren't even gonna be tested on. He/she isn't gonna make you go out and fly a departure procedure or a STAR.
The oral was SUPER basic cause the examiner knew I would probably never fly the airplane again. Plus lets be honest, the systems on a Seminole are freakin basic. He asked about the fuel system, "Well, two tanks, 55 gallons each, 1 gallon unusable in each, 5 pumps, 1 for the heater, two engine driven, and 2 electric." And that was all the time we spent on that system. Did the same basic number pulling response for the landing gear and electric. Most of the oral was us B.S.ing about our jobs. I studied
this and felt WAY over prepared. Don't sweat it man. If you are fine flying instruments, it is gonna be a piece of cake. Not gonna have that commercial fail the engine at 400 ft. crap.