One idea that's been thrown around recently is completely dropping Ninetales, and putting in a full 4 engineer's adjustments. Your PKMN lines would rather look like this:
4-2-4 Typhlosion
4 Reshiram
This has its advantages and disadvantages, mostly being that you are really focused on getting out typhlosion and reshiram, and you'll still be able to power afterburners with fire in the discard, and the power will be perpetually fed blue flare. You still get the draw power, and an extra card at that.
On the other hand, once you run out of engineers, your draw power, without wasting your hand with Oaks or Juniper, is quite limited. Also, if for some reason you have no energy in the discard and need to use a different supporter, you'll be caught in a tough situation (for example... engineers or collector?)
Just a thought; I ascribe to ninetales personally, but I could see a supporter driven engine too.
---------- Post added 08/02/2011 at 02:54 PM ----------
Or emboar could run 4 Switch. Most run 2 or 3 already, and almost all play 4 junk arm.
True, but emboar's junk arms are often used up in energy recovery. In general, there are more trainers emboar has to utilize for it to work smoothly compared to typhlosion.
I played both Emboar and Typhlosion, and I found the defining difference to be that Typhlosion has to work every turn to make sure reshiram can attack, while emboar can set up all on one turn and then can stall or be stuck with no way of getting energy onto the field after 2-3 blue flares, because it had no energy recovery system. And I was running 4 retrieval and 2 Fisherman.
The King of Japan also made a good point that Typhlosion can let reshiram use outrage ot much greater effect than the emboar system.
Also, although not super popular yet, Mewbox/vileplume has a growing following, and I think trainer lock is going to become a much bigger thing in the future; and typhlosion plays around this better.