Well I go to work for a couple of hours and when I get back there nothing left but the dishes.
To bad I wasn't in on the 32% discussion but it seems to have been well covered.
I will answer UP question out of respect though.
"Actually your blanket dismissal of my list of reasons as week (sic)does not really address them individually nor add to the information content of this thread"
My blank answer was trying to point out that those reasons would be good for any gas of choice given the proper parameters.
There is nothing wrong with choosing 32% but the reasons you gave had little to do with underwater and more to do with ease of filling, storing, or remembering. Except for
3. Lower O2 exposure:
a. For dives that will require exposure to elevated PO2s in deco
b. For dives that will be followed by dives with elevated PO2s
c. For cold, stressful dives where CO2 build up is a possibility
However I will comment on those individually
A - the idea of elevated PO2 is to reduce exposure to high PPN2.
A higher PO2 is also desirable for the pressure gradient it offers in off gassing any inert gas in your system. This of course all needs to be balanced with the potential for CNS O2 tox. Any gas used properly will allow this say 40% at 80ft
B - this is a good point, but it all comes down to monitoring your CNS & OTU clock, whether it be one big dive or dives over 24 hrs
C - agreed so the PO2 should be kept lower than the O2 exposure limit for scuba of 1.6, however each dive needs to be addressed separately. Some dives might be limited to 1.2 or even less. Say inside a wreck at 250' for 30 minutes vs. 250' in the Caymans for 30 minutes.
For both those dives I might be using very different factors, dose, gas supply, He content, END, even support divers or not.
Yes I could just have a standard gas but then my standard would need to be for the worst type of diving and may not be necessary for all types given depth and time are equal
Well I jumped back in here late and I don't want to take up to much time on a subject that has already been covered. But by me jumping in with both feet and posing the question I got some info out of it as apposed to just saying I like 36% and anybody who doesn't is not a good diver. I have learned why 32% is a good choice for you guys.
To bad I wasn't in on the 32% discussion but it seems to have been well covered.
I will answer UP question out of respect though.
"Actually your blanket dismissal of my list of reasons as week (sic)does not really address them individually nor add to the information content of this thread"
My blank answer was trying to point out that those reasons would be good for any gas of choice given the proper parameters.
There is nothing wrong with choosing 32% but the reasons you gave had little to do with underwater and more to do with ease of filling, storing, or remembering. Except for
3. Lower O2 exposure:
a. For dives that will require exposure to elevated PO2s in deco
b. For dives that will be followed by dives with elevated PO2s
c. For cold, stressful dives where CO2 build up is a possibility
However I will comment on those individually
A - the idea of elevated PO2 is to reduce exposure to high PPN2.
A higher PO2 is also desirable for the pressure gradient it offers in off gassing any inert gas in your system. This of course all needs to be balanced with the potential for CNS O2 tox. Any gas used properly will allow this say 40% at 80ft
B - this is a good point, but it all comes down to monitoring your CNS & OTU clock, whether it be one big dive or dives over 24 hrs
C - agreed so the PO2 should be kept lower than the O2 exposure limit for scuba of 1.6, however each dive needs to be addressed separately. Some dives might be limited to 1.2 or even less. Say inside a wreck at 250' for 30 minutes vs. 250' in the Caymans for 30 minutes.
For both those dives I might be using very different factors, dose, gas supply, He content, END, even support divers or not.
Yes I could just have a standard gas but then my standard would need to be for the worst type of diving and may not be necessary for all types given depth and time are equal
Well I jumped back in here late and I don't want to take up to much time on a subject that has already been covered. But by me jumping in with both feet and posing the question I got some info out of it as apposed to just saying I like 36% and anybody who doesn't is not a good diver. I have learned why 32% is a good choice for you guys.
ut: 
to that....no:spank: and the cave divers know this guy:reaper: OK enough fun now...Ken
