Impromptu tuishou at the MAS - Museum ann de Stroom, Antwerp 

You are definitely not week. I was not using strength against you. I have done the same thing to some of the strongest people I know. One of my students weighs 180 kg. Another is a former competitive strongman. Some are sumo wrestlers or football players.

don't worry about it, I did the same thing to american catch wrestling champs and competitors, they had many more years experience than me at the time. I was 165 lb they were 240 lb. Didn't make a difference, to the cloud hand tech and internal power engine.

the catch wrestlers were allowed to engage at any range they wanted, so long as they used wrestling, pull/pushing techniques. No hits, kicks, or joint locks. Picking people up was allowed.

I actually weigh 143 pounds

To quote the Taiji Classics : “four ounces deflect one thousand pounds”. The weight and build of the players counts for less when the correct technique is applied. Bear in mind that the aim of the drill is to uproot and avoid being uprooted using a little effort as possible. It's a friendly game to practice principles. I've done this drill with quite a few people and it's a very subtle practice listening to the opponents moves, finding their centre line and exploiting it.. or dissolving/neutralizing a push

Well said. Although in all fairness I cannot completely disregard the weight difference. It does make it easier for me to use less effort. But... I have students who teach other martial arts and come up against the same comments. "It's because you are so big/strong/fast/flexible etc." One of my students is a jiujitsu teacher who used to be a strongman competitor. His students will sometimes comment on how strong he feels. He has to explain to them that "That's not it. It's not my strength that is making you feel that way." And when I was repeatedly defeated, easily, by a 75-year-old woman half my size, when I was 25 and in peak condition, I discovered what this really meant.

@@IanSinclairTaiChi I will reserve judgment based on these replies. If you get an opportunity to record the same type of practice with somebody twice your size with the same results, or if the younger gentleman neutralized larger opponents, I think it will go a long way in preventing any audience confusion and earn a lot more admirers and potential new enthusiasts. Just a thought. Cheers.

There are some on my channel, and elsewhere. The weight and strength difference has to be countered by difference in skill and experience. Most people who train enough to be in demonstration videos have skill, too.