i went to the store, and knew there was 100% silicone, and latex based caulk....but now i see latex based caulk with silicone, and siliconized too?

so not sure which product to buy, but i didn't want to stay away from 100% silicone, as it is extremely difficult to remove...

unsanded latex caulk. Sanded is used to match the look of sanded grout. You want simple color matched unsanded caulk. Buy yourself one of those $5 tools press hard and drag across. People tape off caulk but problem is when they pull tape up it pulls edge of caulk up also destroying the bond to the surface.

Go to H Depot go to their tile isle and look by the grout. They will have a display with unsanded grout in several colors. Pick what is close and your done.

Use the same color as the grout on the backspalsh; most grout manufactures carry matching caulk; use unsanded.

Axiom translucent gray from www.daniclamp.com