Re: CLA 2 or CLA 3 for 6wt
Personally I try to fudge towards the bigger one unless there is such a massive weight difference that it would throw your rig out of balance.
I run a Evo LT 2 on one 4wt, Allen Trout II and a Guru 1.5 all on different 4wts. While I like the guru I love the extra space on the larger reels. I don't worry about jamming my reel if the line doesn't spool back up evenly on retrieve.
You can always put more backing on the larger reel to fill it up if need be and that helps with line memory IMHO.
"The fish you're gonna find up here, you're gonna find; Rainbow,Cuttbow,CuttBrowns,Brownbows,RainBrowns,
CuttyRainbrowns, Pike ,Perch"
"Snap it" Hank Patterson