Just turned 54, wife 52
We try to keep average 2-3 annual Safaris, and diving weekends every 3-4 weeks.
Over the years both of us lost interest in tech diving and eventually drifted back to regular open water dives. We try to extend surface intervals to 2.5-3 hours, and if we feel skipping a dive it's okay- after thousands of them one more or one less is just the same.
Also, we dive almost Nitrox 36% and stay in the 20-25 meters depth, unless there is something really worth going deeper. I try to avoid getting close to NDL limits, typically start ascending to shallower depths at 10min from NDL, don't mind staying at 6-10meters for long periods. Many of our dives are thus ~90 min on single tank in the summer, less so in the winter.
I also choose safari destinations based on water temperature, just because I hate donning and doffing thick wetsuits, so I prefer destinations with temperatures>24 degrees Celsius if possible.
Some of the dives we do sidemount with AL10 cylinders, because it ia actually easier to move around and carry the gear, and last addition to our gear set is a couple of Seacraft GO DPV which makes the dives even easier.
I guess the major change over the years is that I became lazy and prefer easier, more relaxed diving, less carrying, less weights, minimal gear, warm temperatures.
