Then, do yourself (and Waterbury) a favour and try the program as is. It is 2x lifting, yes, but the rest of the days, you are not doing nothing. 10x3 is quite challenging. I understand the stress relief of going to the gym more often, but the program itself is quite demanding.
Your original 3x a week Waterbury WO is quite nice also. Especially coming off the V-Diet
Or, actually do a 4 day split. So many choices out there. 5/3/1, CT's new WO, heck, just type 4 day split in the search and there should be quite a few Pages out there.
At the end of the day, do what you enjoy, but change your mentality, not the program.