Very interesting Raul.
I jotted a few thoughts down yesterday. Wonder if I was at least partly right?
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I don't like the smell of cigarettes or gas getting anywhere near my fishing gear, so that's truthfully the first thing I noticed.
Also, he isn't wearing polarized (or any) glasses; I wear them no matter what time of the day it is- whether I'm fishing for schooling bass busting on top or I'm bed-fishing. That's the second thing I noticed (no, really).
Don't know how tall your friend is; but that rod seems a little too short for my liking. I don't like spinning gear either lol. Don't think he has a finger on the line (does he have a finger on the blank? depends on the reel seat). Reel handle is on the right side, and that's a little unusual- unless he's left-handed.
I don't see shadows on the ground, but there are only a few clouds. So early or late in the day?
Can't tell what kind of bait he's fishing- everyone has different rod attitudes even when fishing similar baits. But the line seems taut and there's a slight bend in the rod.
Never been down to Mexico, I don't know how hot or cold it gets down there. Can't tell if the full sleeves are for sun protection or because it's colder. Just from the slope of the land (more on this later), I'll hazard a guess that's this is not during one of the two stable seasons- summer or winter. So spring or fall? He's fishing uphill, of course. If this was Tom instead of your friend, I'd know it's spring. (Spring up fall down).
So about structure. I look for deep(est) features first and work my way shallow on a map. Bill Murphy said something like (I paraphrase): everyone talks about how good a certain structure is but nobody talks about the deep features associated with that. Some of you might work the other way round.
Talking about deeper features; he's standing right next to a cut, which should correspond to a depression/ channel. There's obviously a creek channel starting ( or ending!) at (his) three o'clock at the very end, which I'd think is the deepest feature in this part of the reservoir. I can't tell if there's a small projection/ secondary point to his immediate right (on the other side of the cut)- he's blocking my view. But if there is a point, then that's another channel. There might or might not be a fourth feeder channel at about (his) 1.30 o'clock; regardless, it's on the other side of the deepest channel.
While I can't see what's in the direction he's casted at, from the lay of the land, I'd think that the main channel (deepest feature) might be closer to the shore on which the boat is sitting. All these channels should lead to some intersections (reference to Catt's favorite structure), which can be predicted/ guessed from something as basic as a satellite photo.
Your friend seems to be standing on relatively flat ground, while further out to his right, the slope becomes increasingly steeper. Which I think is interesting. Even right on the other side of the cut, the drop seems steeper. Even if there isn't a depression corresponding to the cut, there will be a break (breakline).
Can't tell if the ground is a little wet (and if there are runoffs setting up color or temp or O2 breaklines). I see a few pebbles on the ground. That's good- if those extend underwater. Also different kinds of vegetation. So soil composition breaks too? Sparse vegetation is good in my book. Is the reservoir a foot or two low?
I'd probably try some of the steeper shoreline at about 2 o'clock and left of that in summer if this section of the reservoir was all I had to work with. And in winter, I don't like less steep drops like this either (that's why I guessed this is during spring or fall). I wonder if your friend is standing on or near the tip of a main lake point (which would be to his left).
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