you have PM disabled so I'll post it here
to get into the blockbuilding habit. try making DFL (or DBL) DL corner edge pairs. this will help break looking for F2L pairs and instead put you into a mindset for blocks. I can sub-15 using 2 Look Corners. It is not hard at all.
block building examples
http://www.youtube.com/watch?v=OjMWlpsCnq0&list=PL04947B2825E27036&index=3&feature=plpp_video
http://www.youtube.com/watch?v=ViDfOfPM6A4&list=PL04947B2825E27036&index=5&feature=plpp_video
and here's the rest of my video tuts as well
http://www.youtube.com/playlist?list=PL04947B2825E27036&feature=plcp
to get into the blockbuilding habit. try making DFL (or DBL) DL corner edge pairs. this will help break looking for F2L pairs and instead put you into a mindset for blocks. I can sub-15 using 2 Look Corners. It is not hard at all.
block building examples
http://www.youtube.com/watch?v=OjMWlpsCnq0&list=PL04947B2825E27036&index=3&feature=plpp_video
http://www.youtube.com/watch?v=ViDfOfPM6A4&list=PL04947B2825E27036&index=5&feature=plpp_video
and here's the rest of my video tuts as well
http://www.youtube.com/playlist?list=PL04947B2825E27036&feature=plcp