I have been practicing ICs since the turn of 2015 (in preparation for 3.6 where I'll very likely be switching my main to ICs and having a backup Wario), and have learned quite a bit since. I am recently at an impasse though, when it comes to handoffs. I can get the grab with Nana, then back to Popo, but Nana often seems to lag behind and is too far away to get that secondary handoff. I know it's not necessarily going to be important every time (since if I walked them to the edge with chain grabs, once Popo grabs in the handoff, Nana could just F-smash for the kill) but I need to get it down for when they are at or lower than ~80%. Does anyone have any advice on how to get her close enough to grab again? When I move her forward I get a forward throw with Popo, and if I do it after the d-throw she goes too far. If it's just practice I need, then so be it, but I think there's something I'm missing; ICs are very intricate, so I wouldn't be surprised.
Also, the whole d-throw > footstool > regrab thing seems to be easier than I initially thought and I'm wondering why people don't use it. By I easier I mean I can actually do it, lol. I just never see anyone attempt it. That and wavebounced blizzards. I've been incorporating them into my desynch walls and it's crazy good once you get the hang of it.
Anyway, that was sort of longwinded. I love this character so much; I feel like there is an endless well of new things to learn, and the possible mixups are nearly infinite.