I got the 18" as it most resembles my JP. I bought Olyellers overpriced, used Millet DMS-1 to set on top. I had a DPMS lower with an ACE stock and JP trigger in the safe. It feels just like my competition gun. I need to weigh it to see how much it differs.
Sounds fun.
I can't decide which AR to try. I'm using irons on my 11.5", but I just put together an 18" gun w/ Weaver Classic Extreme 1.5-4.5x on top. Nice scope, not quite as heavy as the Millett.
Keep in mind I have no idea how either gun hits at 300 yds. - my range only goes out to 200. I feel like I'm in for a surprise on the 'long' stage. What's the typical zero you guys use? 50/200? Something else? It's not like I'm planning on winning, just getting my feet (er...toes) wet.