I just purchased an Ofna igniter.  I think thats what Squriell uses on those videos.  He seems to know what he is doing!!!   If it is good enough for him.....

If RCtoyhouse will send me another one I will have a rechargeable and a spare that you just put a battery in it.  It really bites when you want to run your truck and can't get it cranked.  At least I could figure out why my truck wasn't starting!!!!