Don't know if anyone has experienced, and hopefully got tips to overcome, difficulty clearing ears with a Kirby Morgan 37.
A bit of background; I've never had problems with half mask, FFM, Band Mask or even the KM17B, but I've really struggled with the 37. My ears are fine on the surface and clear easily on ascent. I've tried different hat liners and nose dam positions, but to no avail. Up to now, I've been able to just take it easy on descent, but going to be using LARS repeatedly next week at a rate of 20mpm and worried that my ears just won't catch up. I know I can call "all stop" if all else fails, but don't want to mess things up, especially as we're doing SurDO2 drills so on a tight schedule.
I'm sure my eustachian tubes are clear, but maybe the top of my neck / jowls are being forced up, pitching or distorting them with the hat on. I honestly don't know. Any tips or advice from working divers or docs would be very welcome.
A bit of background; I've never had problems with half mask, FFM, Band Mask or even the KM17B, but I've really struggled with the 37. My ears are fine on the surface and clear easily on ascent. I've tried different hat liners and nose dam positions, but to no avail. Up to now, I've been able to just take it easy on descent, but going to be using LARS repeatedly next week at a rate of 20mpm and worried that my ears just won't catch up. I know I can call "all stop" if all else fails, but don't want to mess things up, especially as we're doing SurDO2 drills so on a tight schedule.
I'm sure my eustachian tubes are clear, but maybe the top of my neck / jowls are being forced up, pitching or distorting them with the hat on. I honestly don't know. Any tips or advice from working divers or docs would be very welcome.