Two quick comments:
1. Don't get a DIN 1st stage if you're going to be traveling with it. Yes, there is a DIN adaptor, but it adds length to the 1st stage, so that its more likely to dig into the back of your head or your back. Stick with a standard yoke reg if you travel to dive and will be using rental tanks.
[Concern about o-rings is unnecessary. If you're that concerned, replace the o-ring before you install the regulator...they're inexpensive.]
2. High-quality regulators do not 'wear out'. Consider buying used. High-end Apeks, ScubaPro, Atomic, or AquaLung 1st stages will all meet your needs. In most cases, variation in their performance will be imperceptible to you unless you are doing extremely unusual diving. Buying a used high-end reg can allow you to get a very nice product at a discounted price, and it will meet your needs for years to come.
Just a thought,
Best,
Doc
1. Don't get a DIN 1st stage if you're going to be traveling with it. Yes, there is a DIN adaptor, but it adds length to the 1st stage, so that its more likely to dig into the back of your head or your back. Stick with a standard yoke reg if you travel to dive and will be using rental tanks.
[Concern about o-rings is unnecessary. If you're that concerned, replace the o-ring before you install the regulator...they're inexpensive.]
2. High-quality regulators do not 'wear out'. Consider buying used. High-end Apeks, ScubaPro, Atomic, or AquaLung 1st stages will all meet your needs. In most cases, variation in their performance will be imperceptible to you unless you are doing extremely unusual diving. Buying a used high-end reg can allow you to get a very nice product at a discounted price, and it will meet your needs for years to come.
Just a thought,
Best,
Doc