Apart from weight and a cosmetic difference, what do carbon fibre spools offer over the aluminium ones?

For coarse fishing, I've always felt that line comes off the aluminium ones best, although this is obviously not an issue for fly reels.

Thanks in advance.

Nothing.apart from the above.

Jim

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The Fishermans Friend is the Flirty Fly,Fickle Food for Fleeting Fish.

Easier to manufacture, and price difference.
S.

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"A glint of sun has warmed the air,The flies will soon hatch out, To lure and tempt from their deep lair, The bonnie speckled trout." SKB tackle supporter. I love Furled Leaders.