I just mentioned about the rubber thing because I had a chance to grapple with a group of Japanese jjers at UNO about 4 years ago. Hiro something and ... not good with Japanese names :) I forgot his name
point is it took me like 2 hours of getting my ass kicked before I realized what was going on. He was just waiting for my hips to get out of position for one second - which was easy because I felt like I was controlling him and I would become over confident...
Then he would go for this bullshit triangle crap or an arm bar.
My way of dealing with this kind of grappler was to be in constant scramble mode. I never tried a normal guard pass and simply stood up and controlled the legs. Keep in mind we were not striking as this was just submission wrestling. I am also going to go out on a limb and say most of the good JJJ have terrible takedowns without a tie up.
You go from Nick Wright who is an excellent wrestler turned fighter with a great single but limited submission skills to a fighter with limited wrestling and striking skills with world class submissions.
Last words of advice (like you needed to hear it) Those fucking Japanese guards are weird! Don't lose this fight because you think you can ground and pound inside the guard. I wouldnt even throw a punch to the face in his guard.
edited because I cant spell