I will take a slight counter view, the purpose of a single leg, is to attack part of the opponent, and put them on one leg.

So single rather than double.

Footsweeps are elegant when you can get them.

Throws where one makes good use of one's lower center of gravity, another.

The neck remains the neck, big or small.

Depending on ruleset, cut angles and strike, the old stick and move.

Telling strong people not to be strong, or big people not to be big always seemed strange advice,

We would not tell the quick not to use their quickness against the strong.

We do wish to avoid injury.

And, big people can hurt, the same as smaller people.

The Judo phrase of mutual welfare and benefit regarding the importance of our training partners, comes to mind.

Another way to answer this question, is to take a serious look at guys like Koga in Judo and Marcelo Garcia in BJJ who made their reputations as "giant killers".

Koga's story will make you cry, and Marcelo Garcia is not just a contender for no-gi GOAT, but also a contender for the title of the nicest guy in Jiu-Jitsu.

Then there is Chiyonokuni in Sumo.

Wilie Pep, in boxing.

If one wants to learn how to deal with larger opponents, look to the signature athletes who made their careers eating those livers.

I retired from competition immediately after my debut, but my strategy was to pull something. Guard. Half guard. Side control. Mount. Whatever. As long as it's not a muscle, pull it and fight from the bottom.

Very good suggestions, thank you!

I'm a little late to the party, but as a person who has only ever had two matches under ultra-heavy I might be able to provide some insight on what works for me.

1) I start with snap downs, arm drags, and duck unders. Depends on how the tie up happens. Arm drags and duck unders are going to be applicable to all weight classes facing a big opponent, as long as the smaller opponent remembers that they are moving around the body rather than moving the body.

2) Once I get the feet moving, I will work on single legs and fireman's carries. The single leg is almost always a sweep single, seeking to bring the attacked leg up to the shelf if they move forward or turn away, or tree top if they try to escape to the side or turn in. These two can be chained pretty effectively, FMC>SL.

3) Throws usually come from the georgian grip or an overhook. Sumi gaeshi from the georgian grip has a near 100% success rate for me, and a lat drop from the overhook is about a quarter that. More recently I have been having a lot of success with the makkikomi, usually soto makkikomi. I think it's because of how much momentum it can build up.

If all else fails, I pull deep half and either slip out the back door if they fall forward or grab the back of the belt and roll them to their butt then wrestle up.

Seems like a surefire way to get squashed by an ultra heavyweight. I guess it helps get the match off the feet though.

The past few weeks I've been having my guys pummel in for a low-risk single and that's been helping a bit.

Certainly a risk, but less than with the double leg as a "normal" bjj sprawl with good penetration on the shot does almost all the heavy lifting (pun intended).

On a side note, I've just realized who I'm replying too. I've been trying to get up to Asheville to come check out your place, love what I've seen of what y'all are doing at Open Source. Need to convince my spouse that we need a weekend in the mountains.

Oh hey, yeah, small world! Simpsonville's right down the road. Definitely gotta make the trip when you have the chance, and you can spend all day trying to get my giant grapplers to try and do fireman carries lmao.

Sasae Tsurikomi Ashi.

https://www.youtube.com/w[...]xsAhIh_RVU

I find it much more effective (i.e. higher per cent) to lift with both arms and pull your opponent into you. The pull down as shown in the video can lead to an effective knee bend block to the technique if your opponent feels its coming. By lifting with both arms, the opponent is raised on his toes and can't lower his weight to block.

Sasae is certainly a decent option, but I think the best attacks against a large opponent in my experience have been Hiza Guruma, Koshi Guruma and Yoko Wakare. Mind you I'm a Yoko Wakare expert and the throw requires great finesse if you don't want to get crushed. Koshi Guruma is really nice because it breaks posture and can easily turn into o soto gake if they resist by trying to create space. https://www.youtube.com/w[...]j0ysSmVpz0

Yoko Wakare: a very versatile technique which works well against big guys. https://www.youtube.com/w[...]vcykpT67_w