Mark, try keeping it to 4 attempts, with the 4th one being the all out one. Also, blow off the CO2 before your final breath with about 10 quick open mouth purge breaths. It's sort of like hyperventilating, but you only do 5 or 10, not any more. Very quick breaths. This will really clear you out for the the big attempt.
Good luck,
Erik Y.
|
