fdog:But, also generally, I've seen that good freedivers make great scuba divers. You can see it in every movement in the water.
Should freediving be part of the cirricula? It all depends what the goal is, teaching diving, or making money?
All the best, James
I guess it is also dependent on whether you want to produce good divers or great divers.
Also in reply to Amy, it is a good job you learned this lesson in a pool as it can be potentially harmful to freedive with your lungs empty. The pressure will reduce their volume, and without any air in them, there is a possibility that they can get damaged.
I think I have already mentioned this, but when I started just doing a bit of sitting at the bottom of our pool, and seeing how far I could swim on one breath, it really improved my confidence in the water in general. As far as SCUBA goes, knowing that you can swim a distance without air, or just the general larger comfort zone that you will have can only improve your diving.
As for clashing skills, the more you do of both, the more your body will instinctively get used to the differences and act accordingly.