Was announced early february and took complete effect 1st of march. http://forums.pokemonspeedruns.com/viewtopic.php?f=117&t=703

Gambatte-Speedrun is the only allowed emulator for gen1 runs right now.

"All variants of Game Boy Tower have inaccurate emulation, and are therefore banned." -Rules

You might want to join the PSR discord (look at the pokemonspeedruns.com forums, there should be a link, otherwise i can DM you one). There are a lot of ressources there.

The RNG manip consistently gives you a nidoran with the following dvs: 13 hp 15 attack 15 defense 14 speed 15 special, which is the absolute perfect stat combination that is possible. So it makes the run a lot easier and more consistent.

The "Standard" console most people are using is the GameBoyPlayer for the GameCube.

The difference/problem with VC is that the found manips for console/emu will not work on it. NintenTalks is looking into VC manips, but its a manual endeavor which will most likely not yield results as good as the botting for console/emu had.

Picking Eed or Blue ¤¤at the moment¤¤ mostly depends on which category you run. Glitchless is usually run on Red while glitched categories are ¤mostly¤ run on Blue. At this point, I don't think it's very likely to change at least for Glitchless because the current manips are near perfect.

Before manip was found, Red was chosen for Glitchless because the Nidoran male has a way higher encounter rate (25% i believe as opposed to 5% on blue). So it was easier to find the poke you were actually going to run.

It has nothing to do with emulators really, windows 10 just somehow manages to fuck up the OBS classic window capture. It happens in other programs for me as well.