Getting spawned on the south coast and deciding to go into Elektro/Cherno and spend precious time stocking up there can be a hit and miss. The area is high traffic and most of the time, the loot spawns are cleaned out.
If I can get my hands on a can of soda and a can of food, I'm gone from the south, well on my way to the North-east.
Spawning on the east coast is best. I can make a beeline for Berezino with 2 shopping malls and one hospital. They are for the most part low traffic and almost always well-stocked with better backpacks, food/drinks, tool belt items, meds, and sidearms and ammo. And the town is ringed by several deerstands within relatively close proximity where the possibilty for good primary weapons spawn is high.
So, my recommendation is to head to Berezino. You also have Polana a short ways off South from Berezino and that has a shopping mall. My current character wss saved in the nick of time, when I made it to the mall at Polana....barely. Ran out of water and food, down to 560 blood. Polana Shopping Mall, what a sight for sore eyes. But that's another story for another time.
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Simulations is like masturbation. The more you do it, the closer you get to reality.