halocline
Contributor
Resort diving is easier and the visibility is better but that is exactly the problem. While diving in that clear blue water you tend to dive deeper because it just doesn’t seem that deep. You go a little deeper to look at cool sponge and then there is a turtle just a little deeper then something else is a little deeper. Next thing you know you are beyond your planned depth, and you’re buddy is further away because when the water is clear it doesn’t seem that far.
I always take my pony bottle with me. The only problem I have had with it is sometimes you’re gear doesn’t fit in the tank racks on the boat, but I make it work.
This is EXACTLY the argument against pony use in recreational diving. You admit that you dive deeper than you plan, you're not being a responsible buddy, and assume that the solution is to carry a pony.
I'm not saying that you're diving dangerously, but imagine exactly how you would dive if you had no pony with you. That's how you should dive, with a pony, or not.
Once again, I'm not criticizing the fact that you might stray deeper or further from a buddy. I do that in some situations as well, specifically when I know my profile is nowhere near NDL, and when my "buddy" is a dive group lead by a DM. The issue is the falsehood that using a pony makes this safer.