Pred Alien assumptions?

[Wolfy]

As depicted in the DC of Alien they can turn a host into an egg, but there's never been any evidence of Aliens just molting into Queens.

Well SiL, there's a first time for everything 

So lets get crackin' with the knackin'! (just had to quote that from bo selecta ^_^)

[SiL]

But why introduce the molting when we've already got a secondary system?