Helpful tips:
I just installed El Capiton on my PC with this guide. There were some problems I faced and I figured out.
1. You must have USB drive with GUID partition interface. Unless you will get error when you prepare installation on USB using Unibeast.
2. After preparation, you have to delete the HBox... whatever the name, from the /EFI/Clover/Drivers64UEFI/ and put the HFSPlus.efi file. That helps you to boot right way.
3. If you stuck on "Missing Bluetooth Transporter", then you will have to download Clover Configurator. Run the Config.plist with this pro and get into Boot which is on the sidebar. On the right side there are some checkboxes. Check the box npci = 0x2000. Note: if you have usb bluetooth dongle that will work without error.
4. If you wanna boot your system directly from your hard disk, you just need use your USB config.plist file. Don't start from nothing.
5. The only helpful thing is read the guide carefully, letter by letter.