If you're riding a splitboard, a dedicated splitboard carry system is worth seeking out. Splitboard halves have a different shape and width profile than regular skis, and purpose-built straps or sleeves are designed to hold them securely on the uphill. Generic ski carry systems—especially A-frame loops—may not grip splitboard halves properly, leading to shifting or rattling while you skin.
That said, if you sometimes tour on skis too, keep in mind that splitboard-specific carry systems may not accommodate traditional skis well. Some packs offer versatile attachment points that handle both, but many lean one direction.
The bottom line: match your pack to your primary uphill mode. If splitboarding is your thing, prioritize that carry system and test it with your board halves before committing to a long tour.