Wraith whip coils vs Pile In

[Lore Weaver]

A scenario.

I have a unit of 6 wraiths, three with whip coils (they're in the front).

They assault a unit of dudes... I dunno, tactical marines.

Only the 3 with coils get in base. I get my 6 Hammer attacks at initiative 10, kill the three dudes in base.

Do the marines get to pile into the whip coil guys and strike at Initiative 4 before the wraiths get to swing?

[DarkLink]

Whip coils only lower the I of models in base contact, right? If so, then yeah, the Marines seem to get I4, until the next round of combat when they're back into base contact. I think.

[mathhammer]

we ruled it the models pile in at the initiative on their stat line, so in this case they pile in at 4 but 3 of them will not swing now till 1.

This also comes up with power fist, (note it entry says attavcks at 1, not initiative becomes 1)
And a IC that can divide it's attacks between 2 initiative steps.

If there was a power or a rule to change the base initiative then we figured that would be the pile in initiative.