Tried it. Did it for my wedding and a couple of clients. It is trial and error to get the right mix. When I get it right, works great and I didn't see any difference in strength.
Why did I do it instead of using coloured gels?
More variety, got EXACTLY what I wanted and more cost effective.
I have coloured gels that nobody wants because they don't like the colour.
I'd rather waste a couple of dollars on unwanted polish as opposed to 20 or more on unwanted gel.
Couldn't find the colour I wanted in coloured gels either.