Typo... thanks.
My advice is pretty clear, hopefully.
I think the nitrox course is (should be) ample training to understand the concept of an MOD.. and the principle of not breathing said gas below it. I did (try to) infer that to opt for that solution should be the result of a defined, researched and understood strategy. I probably didn't make that clear enough. To have such a strategy (as I intended to describe it) would mean being sufficiently informed to balance the potential risks and benefits. It would also mean undertaking dives/profiles relatively uncommon to novice/ general recreational divers. Realistically, this is advanced diving (not in the AOW sense..) bordering on a 'tecreational' approach.
In my case, I balanced the risk of incurring deco against the risk of limiting the depth applicable for my pony...and not having the pony for immediate use below that MOD.
Truth be told, I think that:
1) On a recreational dive, circa 30m/100ft...
2) With <=40%...
3) Given the short duration breathing a pony, for ascent only...
4) With an informed knowledge of PPO2 limits beyond only one agency's recommendations...
5) Understanding the link between CNS, PPO2 and time...
... well, you can guess what my thoughts were about use of said mix in a real emergency...