I had to laugh when I read your tip, to swim faster in meets swim faster in practice. A couple of months ago we did a 50 time trial in practice. Then we did a set of 50's (don't remember the interval I think maybe it was on 2:00) we had to be within three seconds of our time trial time. A week or two later we did the same thing and everyone was like well I took that 50 out kind of easy so my goal times would be slower. And all I could think was, doesn't that defeat the purpose of the set? The set was designed to push you.
And as for the pulling on the lane line in back stroke, I thought I was the only one that cheated like that! Actually I almost never do that anymore.