Hello Pablo , I started out float fishing lunchonmeat with a sz. 10 and 8lb line , but slowly I have graduated to a sz. 6 and 15lb line .
Like Nick mentioned , the Carp I am likely to come into contact with aren't huge , therefore I'm not ready to go up to 18lb and a sz. 4 .
I think you'll get used to scaling up if you do it in stages .
😃