"Prep time" is DC's "unstable molecules."   It doesn't have to "make sense" as long as the writer/artist makes it feel like it makes sense.

Nightcrawler might have a grab bag of powers that don't seem to connect logically --  but does transforming your body into solid steel or shooting laser beams outta your eyeballs really track?  Really?  

It's comic books  :D    So we just have fun with it when it feels right.

Bone marrow,  white corpuscles...  as long as the writer/artist makes it make sense to the reader, then we just ride with it.

I've had too many disagreements with folks who chose to not-see that Wolverine began that sequence in #133 with a complete uniform, but after being shot there was a clear shotgun-sized hole in the back of his shirt.  I never knew about Shooter's meddling there...  it just didn't make sense that Logan only took a glancing shot there when we saw what really happened.   There was a disconnect with the dialogue.

Same thing with Peter and the tree trunk.   Didn't we just see Colossus uproot an entire tree with minimal effort when they were fighting Dark Phoenix in #136?  But now he has to struggle with a stump?

Writer/artist disconnect.

We just have to be selective with our disbelief, I guess  ---  but fortunately, with ELSEWHEN, we get none'a that guff.

(I'd really love to see what Claremont thinks of this series  ---  cuz you know good'n well that he's reading it on the down low >:^D )

Ha!  That's what I get >:^D

While overanalyzing can be fun at times, I prefer the comics themselves to minimize it.  It was fun in Next Men to see a lot of the consequences of having powers (being invulnerable leading to no feeling, the horror of being trapped in a volcano for decades, centuries even, super speed leading to crazy thick legs and a need to make the skin super tough, etc.) but that wouldn't work well long term as the stories would get bogged down by too much analysis and the like.  Sub 50 issues worked well, but if it was in the middle of a Marvel Universe (for example) I can't imagine it lasting - see New Universe (for a weaker version).

GO FOR IT.

So many questions, no great the need to supress them until this tale has been told!