Sure, magnet´s strength should match to component´s mass. The heavier component, the stronger magnet is beneficial for better sound quality. But springs are not like magnets actually. All springs have mechanical contact whereas magnets don´t. That´s why magnetic isolation is better than mechanical. Furthermore, in practice all opposing magnets are unstable (horizontally), even very thin/small ones. Just try to move close two "weak" little opposing magnets together, they become slippery like ice.
As for springy turntables like ORACLE. I always liked soft suspension with my DELPHI mk II over stiff suspension mk IV. Actually with stiffer springs with the same arm and cart mk IV sounded awful, in my system decades ago. I sold my mk IV and said goodbye to stiff spring TTs.
In sonics springs act/work differently than magnets, IME.
As for springy turntables like ORACLE. I always liked soft suspension with my DELPHI mk II over stiff suspension mk IV. Actually with stiffer springs with the same arm and cart mk IV sounded awful, in my system decades ago. I sold my mk IV and said goodbye to stiff spring TTs.
In sonics springs act/work differently than magnets, IME.