Message Board : GSIH MTT - The Middle Phase

I placed 10th in a 360-seat turbo last night on PokerStars and noticed that this time, it did reach an avg. stack of 10BB. However, I believe it was after the bubble burst. Again, GSIH mentioned this would happen between the early phase and the bubble phase. It also mentioned it usually happens after 2-4 blind levels.

Are there a significant number of tournaments I am not playing - either live (very limited experience) or online - where the phases occur as mentioned in GSIH? Or is there a more useful guideline than 10BB?

The reason I ask is as follows:

According to GSIH, the early phase is regarded as similar to cash games and the bubble and prize phases are regarded as similar to SNGs. Therefore, although my primary focus is on MTTs, working on my cash game and SNG game would help with my early phase play and bubble/prize phase play, respectively. The middle stage (avg. stack = 10BB) is regarded as similar to satellite play. If this phase exists, I would want to work on satellite play to help with my middle phase game. However, if this middle phase is virtually nonexistent in most tournaments, I would not bother practicing with satellites.