As a loyal customer to leeasher.com, I can tell you with 100% certainty that whatever product (Thunderbird included) that you buy from his site, will not only be worth every single penny that you would invest; but everything he creates can be performed in close-up situations. Not only that, but in his teachings, he leaves no stone unturned. He goes over everything, the moves, the angles, the psychological reasoning behind the patter and choreography of his routines.
Thunderbird was actually the first purchase I ever made with him. That one purchase, led me to invest in his other products, and I do not regret anything that I ever bought off of him. When you purchase it, join his newsletter also, he sends out some great advice!