Home Equity Loan on primary residence for rentals, Schedule E?

[Mari H.]

I  am considering taking a 5 year $100,000 Home Equity loan on my primary

residence to use solely on improvements in my 3 rentals. I have asked my

accountant and others online and some say I CAN deduct the interest on

Schedule E by "electing" to 'trace' the amount to it’s actual use.

Others cite publication 936 and say unless the secured debt is used to

improve THAT property (my home), it's NOT deductible. Does anyone know

which is correct?