Silicone render mesh method.

I’ve just done this method for the first time, 1st pass of cantillana c + g cement’in, notch and mesh on day one,
Then going to be topping with retro base and rubbed up for a paintable finish.

my question is, is the retro going to hang about a bit or do I need to sbr or something to help control suction?
Never done it in 2 days before always done wet on wet and it usually comes out lovely.
Any help would be much appreciated.
Thanks
 
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