Hi Sean,
If I'm swimming in a pool going in a straight line is never really an issue, if I try 4 strokes per breath and go for 6 or 7 breaths without sighting, I end up going off at about 45 degrees to the left of where I want to go, the only way I've found of fixing this is to deliberately reach across with my left hand when it enters the water so it is across my body, is there a more efficient way of sorting this out please?