[chimineycricket]

I'm not understanding most of this.

>the Salafi, take the Jewish legalistic idea

What is "the Jewish legalistic idea"? It's not a monolith. What makes a salafi a salafi has nothing to do with legalistic ideas.

>majority of other traditions in Islam lean towards Tafsir

This also doesn't make sense to me, as tafsir is exegesis of Quran. Salafis and all muslims care about tafsir.

The core differences between different groups of muslims, loosely in order of priority, is which sources to take from after the demise of Prophet Mohammed, and then how to interpret any sources (incl. Quran) (literally (salafis), logically (shia), etc.).

There are different tafsirs of Quran as well, and can have very stark differences. However loopholes are completely disallowed by all muslims.