Wet Grinder for coconut - konkani people please reply

Hello,
I have bought vijayalakshmi wet grinder and not satisfied with it. I grinded 1 coconut but it didn't turn out in fine paste.The curry when boiled was not smooth. Konakani people will undertsand what I am expecting from the grinder for preparing Tepla Ambat or Randayi which are only coconut gravies and it needs to be like Sandalwood paste, I mean very fine. My relatives have very old model like SANTA which now not available.

Can anyone recommend another grinder like Ultra or Butterfly. People with such experience please reply.

Thank You
Priya