I have had the same thought about the Cube method. But the total volume/tonage would be to low for me now, compared to what i have ran up to now.
So i decided to use Korte's 3x3 with an extra accessory day on day 4.
But you have to have in mind, that 3x3 is made for single ply lifters. so the first 4 weeks are 58-64% of there geared max, and the last 4 weeks are 60% of their geared max. the high intensity lifts of 80-95% they are using gear.
So if you are a raw lifter, the % is to low. so the % have to be adjusted
I have also made some tweaks to the program, so i dont just squat/bench/deadlift every day in the first 4 weeks, but use very close variations + 1 accssory movement.
i hope my english is understandable