Transferred $5,000 from CPF OA to SA for 2018

I did my very first $10,000 transfer from CPF OA to SA in 2017 (See post here).
I did my second $10,000 transfer from CPF OA to SA in Feb 2018 (See post here).
Today, I did my 3rd $5,000 transfer from CPF OA to SA.

This should be my last transfer as I will be getting my HDB BTO key mid of 2019.
Therefore, need to strike a balance between HDB loan (Looking to finish the loan latest by 10th years mark) vs Retirement.

Today transferred was sort of unplanned as I received a huge bonus from my employment, thus, making good use of the extra money for the compounding magic to do its work.