Can we read Zawd (the 15 letter) as Daal (the 8th letter)?

Question
Can we read Zawd (the 15 letter) as Daal (the 8th letter)?

Answer
The  must be articulated from the correct articulation point, which is not a nor a with tafkheem (heaviness) or a .  The correct articulation of the letter is from the sides of the tongue and what lies opposite to it of the molar area (near it), and not from the tip of the tongue. It takes practice to perfect.
  The three letters that some Muslims mistakenly pronounce instead of the all come from the tip of the tongue, whereas the does not use the tip of the tongue for articulation.
Please also see: http://www.abouttajweed.com/articulation-points-areas-of-the-arabic-letters/the-side-of-the-t.html
http://www.abouttajweed.com/kb/entry/75/