A video.

[donnydarkoIRL]

only viewed the 1st vid so far.

mma guy is flat footed, leans back from punches rather than blocking/slipping or using footwork.
MT guy gives up his height too easily, he ducks down to meet mma.

both pull back straight from attacks, need to use the pivot.

Are these guys fairly new to boxing?

The Muay Thai guy is new to boxing.
Like you said he sacrifices his height way too much, which is silly as he's 6'3'' or so.
The mma guy has been boxing for a while, he really held back there, he's got enormous power, but didn't use it in the spar.

2nd vid. He looks a strong fella.

Only thing I've read, I'd be aware of over comitting your slips to the right, might not be a big deal right now but I was watching for it and I'm sure (down the line) if it's a habit that sticks pros will be looking to unload there. Maybe tell your sparring partner to look to tag you for it

Also if someone backs off in straight lines, try broken rhythm footwork,
take a regular step, shorter back step, then longer front step.

Essentially the same way that you can vary the speed of punches (keep them regular so they expect them and react to them the same then Boom whizz one straight through).

Yeah, I go down too far to the right even when I am fully fit.
Thats only light sparring, I'm hoping to get some more intensive vids up.

I want you to look at something weird.
My left foot there was on the ground the entire time. Any chance thats because of the shouldr injury?

Is there a Cuban influence in the area as regards Southpaws out of interest.

Nicolas Cruz Hernandez, makes regular visits t the gms in our region.