If anyone has any doubt about Tony's instructions posted at the top of this meat forum, don't. I cooked my Wagu strip roast exactly per his instructions, abet, with my spices (lemon pepper, garlic salt, minced garlic, Montreal steak seasoning, and olive oil). Smoker cook time was 4.5 hours for a 4kg roast. Funny thing was, like he says, it even took my oven 30 minutes to get to 500+ degrees before I could start the reverse sear (while the roast rested).
One side note tho, I think that I wrapped my roast a little too tight with the string. Next time I'll try it a bit looser. And, I used wood chunks with the bottom foil wrapped and the chip grate in as my wood is a bit dry.
However, it worked out great! Thanks again Tony.
Pictures below for your enjoyment!