Sami Erdogan said:I admit i'm too narrow focused, because as i said i only have limited time to train per week. But incorporating some elements from foundation could probably work out without neglecting my current training.
Again, there's no filler in Foundation. If you want to progress to learning moves like an iron cross or full planche, following Foundation programming is the fastest way to get there. It shouldn't take you more than 2-3 hours a week if you're efficient about it.