There is a new route of Pokémon Yellow, made mostly by myself, wsopboy91, and listlesssalmon. The route involves skipping the machoke trainer in silph (just like red), and going back to get EQ later. This had been considered before, but it is bad with blizzard (you need something to kill Giovanni’s Rhyhorn). Now that we use ice beam, we can teach that early to kill the Rhyhorn, and make late EQ work.
 
Because you skip the machoke trainer, you cannot candy twice after Arbok like we used to. This means we candy later, giving us more exp. With this extra exp, we can fight Erika early (which is normally bad because you have to X Special), but doing this allows us to candy 3 times before mansion to level 44, avoiding the annoying level 43 rats! This is significant because level 43 rats show up way more often than 46, so it is now way less likely to get a Raticate in mansion.
 
This route also allows flexibility in gym order. As long as you do Blaine 7th, you can do Erika, Koga, and Sabrina in any order. If we have low HP after silph, we will do Erika first in order to keep or get into red bar, which can then be taken into Sabrina. If we level out of red bar before Sabrina, we will fight Koga next instead in hopes of getting hit into red bar for Sabrina. If not at low HP after silph, we will do Koga, Sabrina, Erika, hoping that we get hit into red bar by Koga and can carry it through Erika.
 
You normally must get 2 Carbos in order to outspeed Champions Alakazam after an X Special. The old route required the Silph Carbos, so we just picked up that and the Mansion Carbos. This route does not require the silph carbos, so instead of 2 carbos, we get a Rare Candy which will be used before Bruno. This gives just enough Speed to outspeed Alakazam, and gives a few other benefits. You are level 51 for all of Agatha, which means you can X Special on Gengar and outspeed everything, while Golbat becomes a damage range to 1 shot instead of a 2 shot. Better defensive ranges on Lance, and Magneton no longer being a range are the other benefits.

There are a few more minor changes, such as different shopping and menuing. All in all, this route saves around 20 seconds, and adds a decent amount of consistency due to no rats.