In the past week, I worked on the following items:

1.) Tried to come up with an automatic update scheme for L and C
values based on load.  We were thinking about doing an approach
where we would use a table type structure.

2.) Started looking at how mutual inductance can be used to control
the Ilf1 value so that we could use this as an indicator for fixing
ZVS and efficiency.
 
3.) Reviewed PhD on buck converters and found out that feedback algorithm is much more complex - they have two schemes, a simple one with a op-amp and a more complex one with pulse generators etc...