After sometime I did was not involved in writing theme based on YAHOO YUI CSS Grids, primarily due to my theme developer Justin Tadlock with Hybrid Theme stopped updating it, and I need time to find out other theme frameworks.
Two days ago, I tried using Default WP Themes, 2014, 2016, and so on, and I found that TwentyFourthen WordPress theme is the easiest to talk to YAHOO UI CSS grids.
We will display more things on the sidebars, meanwhile I will continue develop offline and online particularly in adding widgets into the original widgets belongs to TwentyTwenty.
Now I am using this them.
Thanks