Doing a move which someone can easily throw you out of, is not setting up combos with “ease”. It just sets yourself up for damage. That move can only be used against pradictabo scrubs. Or on Live with tons of lag 
Only time it should really be used is to punish a wiffed move that has lots of lag (ie a fierce dragon) or the wp version in a poke string. And even then, I’d rather just put them on the ground faster.
Actually the shoulder ram is really underrated. Seriously, against Sagats and Guiles that like to throw projectiles, be ready to do the motion and juggle them into the corner- they won’t throw any more booms/shots.
Also, the WP version is good to end a s.LP s.LK s.MP chain if its blocked, as it recovers quick unlike the lunge punch.
But for GODS SAKE do NOT throw it out randomly. Like the other guy said, you can get THROWN out of it for fucks sake.
what is WP? I’m guessing its from XBOX version? Does WP = LP? (Weak Punch instead of Light Punch)
Guile will easily recover by the time your shoulder gets to him, he can sonic boom -> recover -> throw before your attack reaches him. And I dunno, I’ve NEVER seen a sagat throw projectiles at Yun. In fact, I hardly see sagat throw out random projectiles. His normals just beat yun the fuck down. c.fierce, s.fierce and yun loses an insane amount of life.
Well, Guile being able to recover in time has a LOT to do with how early you do the shoulder ram. Against Guiles that like to boom alot (which is most), just stand around. Wait for them to throw a boom, and just jiggle. As soon as you hear the “sonic boom” start to come out and see the motion, do the ram. It works- I’ve done it myself and the “Japanese CvS2 Yun Master” Ken from Evo2k2 ripped up Guiles with it. I’m not saying, “when the sonic boom is right in your face, use ram to duck it”- that’s suicide. But since it’s really hard to get Guile open to attack, preparing and waiting to let the opponent do it for you is best. Of course, you could just RC a lunge punch. :lol: But that doesn’t give you the juggles.
As for Sagat, yeah I’ll admit Sagat doesn’t do fireballs much and he’s not the best person to do it against. I also agree Sagat rapes Yun pretty easily. Aside from praying, the only change Yun really has is roll cancelling to get in close, and even after you knock him down it’s painfully hard to stay ahead of him.
Roll cancel lunge punch has to be done quite late. Or you will hit the sonic boom. This means guile will mos tlikely be blocking. to hit guile with a shoulder you basically have to do it pyschicly. Im not saying it cant be done if they’re predictabo, but it wont happen very often 
EDIT: and Ken is just a crazy bastard. That guy plays mad smart.
Psychicly? I think that’s an exaggeration. If you’re waiting for the sonic boom and you have decent reflexes you should be up in his face right after the boom leaves his hands. Also, you can roll cancel it a bit late if you know theyre going to walk/jump/roll/attakc behind it and smack them while they charge at you.
I totaly agree that the shoulder ram is underated as it can set up some fantastic combos and its harder to stop than some people think. As kobokushi said please dont just randomly use it but strategicaly it is a good move to use.
i’ve been useing Yun for a while and i’ve found things out, like jab, short, strong, lv2 yang super, shoulder ramp, s.forward, jump, jab fierce
DOES ALOT
but only works in the corrner
and the 2 LV.3 super combos take the same damage.
and if u can roll cancel. YOU WILL RAPE EVERY ONE.
rool cancling the
lunge punch (cus its fast as fuck)
palm thrusts (to stop those wake up dragon punches)
command grab (free level 3, or combo)
roll cancle those and ur will just destroy ppl
He’s a pain in the ass to use on live though, even the shortest second of lag makes one of his combos fall appart.