This question is in regards to my dry static practice. Today I started to see how long I could hold using only frc. I started off at only 30 seconds but over about 25 minutes of practice I was able to get about 1.30 which I was very impressed with. At this point my confidence was high so I tried a full lung hold shortly after and I was able to hit my new personal best of 4.06. I felt great during most of the hold wit contractions coming at the 3 min mark, they usually start at 2 min. My best time before this was 3.45 and its been a couple weeks since I've done that. My question is...are the frc holds acting as a type of hypervintilation before my full lung holds or is the confidence that the frc hold gives me the reason for my improvements?? Or I guess it could be a little of both.