Treating possible invisible micro cracks with thin ca glue on Brazilian rosewood- THIS IS NOT PORE FILLING.
Brazilian rosewood is prone to cracking, be it perfect quarter sawn or slabby cut. What makes it a cracky wood is also what makes it a great tonewood.
To deal with this, flood it with thin ca glue as this will wick into any invisible micro cracks and fix them. (This step ISN’T pore filling.) Doing this thin ca step not only minimizes invisible micro cracks from developing into visible cracks, it also seals the wood and gets a (small) start on grain filling which is a nice bonus effect.