I am about to finalize and pick pool resurface and decking contractors. I am torn between choosing between white plaster vs Wet Edge Signature Matrix pebble. My concern with pebble is that my grandkids would play hard in the pool and damage their feet. My current surface is plaster and it lasts almost 40yrs, so it is also very durable. What are benefits of Wet Edge pebble vs plaster beside look and durability? And if I decide to go with WetEdgr what color should I pick that would make the pool water color looking blue and not green? Thanks.