Still looking at 686's, well seems like there is not a bunch of them around-here anyway-, am leaning towards a 6" but still open on that. Today I found a lead on a 686 Plus. Well I have some questions about it and have been all over this site and the interent but can't find out what I'm looking for. I believe this is used as a competition model so to speak, am I alittle bit right here or way off base, anything else that makes it different from a non-plus model? Please enlighten me.