AK:
I am not allowed to give advice. I am only talking to myself in my blog.
From your email, I get the impression that you have been reading my blog. So, you know about the accrued interest we owe when we use our OA money to pay for our home.
I am not saying anything new when I say that we should avoid using OA money to pay for our home unless we don't have a choice. CPF money is primarily for retirement funding purpose and not to fund consumption.
Since you already decided that 'free money' from the government is good, act on that belief. ;)
I say frequently enough that I treat my CPF savings as the investment grade bond component of my portfolio, generating relatively good returns. That is good enough for me.
We can never have our cake and eat it too.
Related post:
How to stop accrued interest from growing?