I won't try to give you too much advice since you'd know more than me. I always have to deal with taller people though and what sucks is that they're usually heavier too.

If he's your weight you've got more options otherwise you just have to be very patient and throw a lot of jabs which you said in your other post you did.

You can go in off of his jab as TM says (CC TM)- either following it back in while throwing your own punch, slipping it and stepping to the side as you go in so you're using angles.

My coaches always tell me to use my guard - but I usually feel like a punching bag if i try to go in with it or use it to defend against more than one or two punches at a time. Perhaps if you have a better guard than me that'll suit you though.

I'm guessing throwing punches like overhand rights and still going to the body sometimes is something you'd do anyway. I always try to remember to do that when I have problems with taller people because I don't have much luck throwing straights to their head. It's too easy for them to see that coming.

I've been told not to expect to win much off of my first attack with a taller, stronger person. I am taught to attack - expecting it to not amount to much - defend and then attack again immediately several times. The idea being that most people will be put off balance most easily after they have just attacked, the more you pressure them to attack without letting them reset the more chance you have of taking advantage of that. I guess in this case it's especially important to use your angles rather than standing right in front of them. I'd usually try to step sideways while defending before going in for the second or third attack.

Another one I have been told by a coach in the gym who is stocky is to 'make traffic'. Use punches to hit their punches or just hit their front glove to mess up their jab, get your own timing on and sort of clear the air in front of your head a bit.

Sorry if this is sub-standard advice or a lot of stuff you already knew. I'm obviously still trying to make these things habitual. At the moment it's more advice that I'm passing on from coaches who've been in this longer than me rather than advice from myself. There's a chance my understanding is not perfect but hopefully I've relayed it accurately enough.