As well as he played against the Rangers, I thought Schmid got a little lucky. At times his rebound control is not that much better than Blackwood's. However, I think your idea to give Schmid a real chance is reasonable.
I also agree with CR1976 that an extension for Hellebuyck should not be 8 years, it should be half that. I do want him here but not for 8 years guaranteed.