Thibs New Training Questions #3

I posted this in the beginner forum this morning and its not getting much response, and I made it after reading your articles, so Ill post it here to.

Is the link where I go into actual exercises I do, but the main question is:

When training chest/tris back/bis legs/shoulders twice a week, Should I do a heavy day and light day, or should I keep doing the same weight and reps?