Can't beat a bit of Tekkers so I will check it out, thanks. The lessons I went to were all into swimsmooth, is it similar? I also have the annoying sinking leg, why do I end of upright when I stop kicking issue.
I have been swimming regular for over 10 years and still feel I am pretty crap at it. There is so much technique (some of which continues to change) that as quick as I feel I am getting better it all goes downhill. Small changes to body position and stroke can have large impact on how you move...