theory doesn't work in smash
1. I'm using it correctly. SDI the fair trajectory and then DI back to the stage.
2. When did I say this? I said that fair queue had to have been racked with 5 or 6 fairs. Ike is a heavy hitter. Rotating through his queue can take a while unless you just got done somehow spamming a ton of jab combos because people like jumping into you. From what I've seen, Ike's fair is a primary spacing tool, as well as an edgeguard tool. It doens't surprise me that when Ike's fair is also one of the very few moves he has that outranges Lucario, that it would go stale quickly. I wasn't hit out 6 times in a row, maybe twice? I was hit off the stage, was coming back, got faired back off, came back to the stage, and he read my ledgejump and I died. Not sure how this is so difficult to believe.
I'll assume you've played the Lucario Ike matchup, and you should know how long it can take for Ike to land a hit on Lucario, if Luc is busy playing retreating projectile game. The example was irrelevant to this match, as I was only trying to imply that Luc is capable of making it back to the stage after being hit by an fair at any percent, so long as he doesn't hit blastzone. So yes, 6 Ike fairs prolly tallies to around 60%, but in the time it took for those 6 fairs to land, I've already landed a good 70% on Ike when at those percents.
3. No. rofl.
4. No. Please stop being under the impression that Ike can gimp Lucario. This "luxury" belongs to only 4 or 5 characters. I'm not accusing Ike of being super duper easy to gimp every stock at 70%, because it's a gross underestimation of his character. I'm pretty sure I know Lucario's recovery properties much better than you do, and I know that one, laggy, blunt hit, isn't going to gimp Lucario. Tested and proven.
5. Yes.