Chain Punching is well known to any Wing Chun practitioner. In my opinion with over 25 years experience in WC, there is nothing magical or secret about Wing Chun punches. If something sounds too good to be true, it probably is. I do not believe in the magical this or that. I believe that the practitioner that prepares and undertandes multiple ranges will be best served.
The Sifuís Bio you enquire of can be found in this site under 3rd generation Yip Man.
I can be found under 4th generation Yip Man and 2nd Generation Pan Nam System (Sifu, Kyle Weygandt)
I am slightly lost, it is Wing Chun but there is hardly any meantion of it being that style in the ad. It seems a lot like the ads I see in my imported inside kung fu and ultimate grappling... become combat fit using bodyweight exercises with only 5 minutes a day ..... Shed pounds and put on muscle using new inginous methods ..... have sexy women make a move on you while you do nothing..... just send a cheque made payable to .... to recieve these life changing secrets today. The only secret to anything in life is hard work and percerverence their are no short cuts people who make things look easy do that by puting in the work.