RSP loan and Child Tax Benefit (CCB)

So, RSP loans are 1.49% at Tangerine. Heck, a HELOC is 2.35%. If you borrow and then put into RRSP to lower your taxable income, that's an additional 3.2% increase to your Canada Child Benefit (CCB), assuming you have only one child.

So borrow the money, pay 1.49% interest, put in RRSP, leave it in cash if you want to, then collect 3.2% return on CCB (higher if you have more than 1 kid). Free money?