In my experience, scale is just one factor in the playability mix of dimensions. Others are the bridge position relative to the body end, and the front strap lock position relative to the fretboard. In the first instance, a Fender Rascal bass is a 30" scale but the bridge to nut distance is pushed forward making it similar to the reach on a P bass when you strap it on. The Cardinal had the front strap button well above the 12th fret where most Fender-shaped bodies have them, also causing the body to hang forward when you strap it on. Another example is a Gibson SG/EB where the front strap button is at the neck/body joint, making the reach to the 1st fret pretty far. It also adds a lot to neck-dive.