Ping Engines

I have a large list of ping engines.

Is there anyway to remove unneeded ones or broken ones?

Any advice is appreciated. 

Also - does anybody have the default GSA SER list of ping engines?

save you log to file for some hours and mark the lines with ping accordingly in notepad++.

delete all unmarked lines, get rid of the time stamp and sort them to get a clue which ones are working and which don't.