I saw videos how to make the minecart skip. there are 2 ways to do it depending on wich version u play. Now i play the Steamversion locked on 30 Fps because the Waterfall skip only works with 30 fps. know i dont know wich way i need to use for the minecart skip , the direct way on the corner of the post or the "normal" way in the minecart.

http://re4central.com/guide/1/Minecart_Skip

any chapter that doesn't have a useful out of bounds skip is better to do on 60fps. also whether your run is segmented or a single segment you want most of your run to be on 60fps. I'm sure the guide Danschemen posted will show you everything you want to know about the minecart but for the fps thing id suggest playing on 60fps all the way to just before Salazar at the typewriter at the top of the tower. Switch to 30fps to do the Salazar skip and the island skip. Then use the typewriter by the first island merchant to save and switch back to 60fps and finish the game. I know the waterfall skip is only a small time save, so it might not be worth doing on steam.

The 60fps method is used only if you are playing at 60fps on the steam version. For all console versions and also if you are playing steam at 30fps, the other method is the only one that works