I have searched the forums however am unable to find the solution to my question.  I have a Suzuki 2004 GS500F and plan to change both front and rear pads.  I am looking at FA231HH for the front and FA63 for the rear.  My issue is when I search amazon . com , I come up with 2 different options for front (EBC Brakes FA231HH Sintered Copper Alloy Disc Brake Pad or EBC Brakes FA231HH Disc Brake Pad Set).  Any recommendations?  Thanks.

Seems you are looking at 2 different ads with different descriptions for the same FA231HH pads.  Only one kind of FA231HH pads and they are a good choice for the front of your bike and so are the FA63 for the rear.

Honestly, I wouldn't run anything other than the EBC epfa on the GS. You will get twin disk performance out of those pads, but you'll see reduced rotor wear.

After looking at the info on GSTWINS I ordered the exact same combo on Thursday.  Seems to be the best combo for our bikes.  Currently I'm running the FA63 on the rear and the organic EBC  on the front  (I think it's just a FA23 or FA231, I can't remember  - Same pad but organic, not HH). 

I'm looking forward to seeing the difference in the front performance with the HH pad.

I ran organics on the front of the GS once and didn't like them. Performance fell off too fast, and they weren't terribly consistent. I literally wore them out in one day at the track.