When I have to shoot fibre I use Eley Select in 24gm, slightly more recoil than the plastic version. I shoot the plastic 24gm all the time and find them very good.
I shoot Fiocchi Fibre TT 1's very nice cartridge for most targets, appear very consistent with good kills, as good as any club cartridge l have ever used, good price too. (No confetti and good on the shoulder)