RE: Reccomend me an Arrow Size..
Depends on what carbon, but i would also say a 400(depending on what weight head you are using). With Gold tip i would say a 5575, beman a 400. And why may i ask are you getting rid or the peep? I thought about the same thing a few years ago, then i got a much bigger peep(fletcher hunter peep), and the big apperature(spelling) let me still align my sight ring within my peep, almost like a rear sight on a rifle. Anyway, different story. Carbon is good, so is metal, if you switch though...I tried bemans and didn't like the covering or the straightness, CX shafts were not straight enough, easton carbon excels were good for the price( but they were pretty much easton's answer to the gold tip), so i started shooting Gold tips and won't change any time soon. Go with hunter XTs. Had the same dozen for 3 years.