Syncing a bang, a float and a coll item?

Is there an object (or another way) that will not output its contents before something has been received in every inlet?

I am struggling to make sure a coll item follows a bang and a float (the coll item is always a bit late), and just using a pipe seems to disturb the "synchronicity" of it all.

EDIT: Ahem, it seems I'm looking for "buddy" ...