Hi Trux,
Thanks for the insights!
I normally rest some time from my last dry-land dynamic/static, then commence a two-minute breath-up. This consists of long, slow, inhalations, followed by longer (up to double the time) exhales, then a final deep inhalation and exhalation and hold...
Perhaps I'm still breathing too rapidly/deeply.
My obvious concern is that I don't want to be doing an incorrect breath-up before and actual dive and then samba/BO just after my duck-dive
Any tips to avoid the problem? Is there a standard, good breath-up pattern?