BB: Scheer only snuck into the lead at the leadership convention because he got the second votes of the more overtly socially-conservative applicants. He didn't get those votes because cpc voters think he's  liberal. And he will have to pay back soon. So you're correct - Liberals will be able to use that on him. And his party. Good.
And if you think he has more in common with voters than JT, why are the Liberals 12% ahead now?
http://abacusdata.ca/liberal-support-holds-with-improving-economic-mood/