I currently use hi-lo with side count of aces.
I am aware of RC changes for specific hands with respect to excess aces dealt. When I play hands like: 10Vs 10, 9Vs 7,99Vs7, 16VsAnything, 11VsAnything,Insurance... I adjust playing RC with my SC of aces as::

Let n=excess aces dealt
Playing RC = hi-lo RC +(m)*n
where m= multiplying factor varies based on the hand.
Like 10Vs 10, m=-1 as ace=valuable high card.
Insurance m=+2 as ace=small card

I am planning to incorporate SC of sevens in my game. How can I find which all plays needs to be altered. To be more precise:
Primary count: hi-lo
Side count: A=-1, 7 =+1

At which all hands I need to change the playing RC and by which multiplying factor? How can I find those numbers? Can I customize CVData for the same.

Any help/online reference will be appreciated.