Today I purchased GM Igor Smirnov's "An Endgame Expert" course also and found it the best course for "middle to end game transitions". I think, Any beginner shall watch it 50 times and intermediate player 25 times and he can plan entire game in a tournament and win it because many advanced players are not well versed with the clear ideas provided by GM in the endgame course. And if you fear openings, "GM opening laboratory" provides you selected openings where your opponent can not get any advantage against you whatever variation he plays. GM Igor's research is fantastic.
You may find the courses at

http://chess-teacher.com/home#oid=1014_5