NEOGEO AES Japanese with 50/60HZ switch mod, actual benefits?!

So, after successfully performing the RGB mod and installing the Universe Bios in my Japanese NTSC NEOGEO AES 3-6 board console, I'm now thinking about also installing a 50/60HZ switch as described in this guide:

http://www.mmmonkey.co.uk/snk-neo-geo-60hz-mod/

I'll be using it on my European CRT TV which supports 50HZ & 60 HZ perfectly with all my other EURO PAL consoles which I have also modded so far.
But is there a practical point or benefit in installing such a switch and have the option to play games at 50HZ on the NEOGEO, or should I not even bother and stick to the default 60HZ.
I would rather avoid drilling a hole onto the plastic case if there is no actual benefit from it.

By the way, I noticed at the jamma-nation-x site, it says that you also need to modify the colorburst crystal. How do you do that exactly?

http://www.jamma-nation-x.com/jammax/tutorials.html

So the guide at mmmonkey is not complete? What else needs to be done to add a fully working 50/60HZ switch on a NEOGEO3-6 board?

I'll also do this awesome LED mod by installing a multi-coloured RGB LED instead.

http://www.mmmonkey.co.uk/snk-neo-geo-aes-power-led/

So any recommendations & thoughts will be highly appreciated.
Thanks in advance

 

Like it says, replace the crystal with one of the other value. Weren't there some boards without the crystal?

You're probably better off with a UNIBIOS nowadays. http://unibios.free.fr/

American consoles had green blood instead of red blood on some games.

 

Yeah I have all ready installed the Universe Bios with a 40 Pin socket for easy installation and removal for future upgrade versions.

So, I checked and the crystal it has now is a 3.579545MHZ NTSC Crystal right next to the AV/RGB ouput and from what I understand it is not easy to install both crystals and a 50/60HZ switch to change between true PAL50 & NTSC60 on the fly like on other main-stream retro consoles?!

 

Don't do this. 50Hz sucks all the way to holy hell and back. Don't ever use it when 60Hz is an option

 

Why the f*ck would anyone want to mod a machine for 50Hz?

LOL