In Reply To:
Don't listen to these people. if you don't want to do flip turns don't do them. Are you paying for masters? Yes? Then the coach is working for you. Tell him the way you want it to be. End of story.
Swim turns for tri training are highly overrated. I don't do them because I don't like them. I have swum 57 flat in my last three Ironman races going easy and beaten a lot of the fish. I only swim 2500yds twice a week. I NEVER do flip turns. Last I checked there are no walls in a triathlon. Doing a flip turn forces you to hold your breath longer than you would swimming aerobically in a triathlon, particularily an Ironman. Doing open turns maintains the steady breathing pattern thus you can swim harder for longer. I think flip turns are for people who swim a ton and have a monster swimming base. For us 2-3X per week short yardage swimmers flipping is too hypoxic and makes for a worse, not better, workout.
I also don't alternate breathing. I never do it in a race so why do it in training.
I've pissed off many a masters coach by being stubborn but I never got knocked out of the fast lane.
Do flip turns really make you hypoxic? I think that is a great reason to do them!!! Don't you want to increase your vo2max? I guess there is a reason why swimmers take so well to triathlon. We have no problem with the aerobic "stresses" of flip turns.
They will help your rhythm. They will put much less strain on your shoulder. You will actually be able to race the faster people. You will learn how to be more hydrodynamically efficient in the water. And apparently it will benefit your lungs too. If swimmers don't have to think twice about the "strain" on them from flip-turning, then wouldn't you want your lungs to get bigger too?