No doubt you have sorted through this by now, but still...
The Collins Writing program is a crock, a way of dumbing down
writing instruction so that teachers who don't want to work
that hard can still pretend to be doing writing instruction.
Any six trait writing you do will require so much more higher
function writing than your Collins.
When we implemented this fiasco of a program, our department
went to our administrators and said, "Look, here's what we're
doing. Do you want us to cut all this out and water it down to
Collins level, or would you rather just say that what we're
doing more than fulfills the requirements of Collins writing."
They chose the second option, and I have never had Collins in
my classroom since.