@zaf @jharris yeah i couldnt agree more with Zaf, the fact that the loss of frames and reaction time is so significant online makes certain situations a possibility... take for instance Tremors D2, now, even if i know for sure a jump is coming and preemptivly startup the D2 ( note D2 for Tremor is basicly his most effecient anti air ) 80% of the times i still get hit and its not even a trade... with this being said the same concept applies to the poking situation online, if your poke is blocked salvo rare expections if you move a smart player will punish, but online, certain pokes can be mashed out for what an only be put, as Zaf said, around 0, which not only makes them safe but gives the opponent the oportunity to do another poke or a string...
Now this is what i think, and take my 2 cents about it if you want... Online is a beast of its own right, what works there does not offline, but in the care of mind if your an online warrior exclusivly then this is what you should consider:
D1 and D3 dont have the same frame data for specific reasons, online Ermacs have the braindead reasoning that D3 SEEMS to come out faster due to its animation and is a low so it must be the better poking option, this way of thinking is incorrect, be it for Ermac or any other character, both play an important role. So when you tell me "you" Counter poke with D3 ill assume "you" dont understand the character complitly ( note im saying you, i dont mean you Jharris, i mean you as a generalization of anyone who reads this).
So if lets see... if you want to counter poke you will use D1 after a blocked poke from your opponent because it comes out faster than D3, it might be a little more negative but what you are looking for is to punish his blocked poke, not to just be trading blocked pokes with your opponent... so if you just punished his blocked poke, which i might add is what should happen, and what does, offline... you have a handfull of frames at your disposel to initiate a mix up or some string that will lead to a mix up... Now this is what should happen given the correct conditions ( all of those met offline because there is no lag) But what happens online is this: D3 D3 both blocked and Braindead Ermac goes for F4 and you cant do anything about it in most cases.. see the picture?
As for testing opponents reactions, me and Zaf had a long string of posts few pages back regarding this exact issue... but ill make this a brief ex, of what i think: Offline in a tornament setting, testing opponents reactions might come at a deadly 40% price... should you do it? i dont incourage it at all without previous research, the good think about Tornaments is that most ppl that should be feared have gameplay of themselfs all over the internet, so you should do your research on them before testing any crazy ideas you might have...
Online its quite the same idea, i dont incourage it but should you try? id say yes. Even if its atleast just once, if youyr punished for it well tuff cookie brush it off and dont do it again, its not like online there is anything on the line...