RASP vs squiggly lines

The RASP looks great for the Waikato today. Thermals, ridge lift, high bases...but what the RASP doesn't make clear is a) high cloud and b) that the day will go blue.
If you look at the RASP picture for boundary layer cloud at 2pm you get a sense of how blue it will be.

 However once again we have to deal with high cloud...which will limit heating, which will mean the thermal tops will be slow to rise, which means it'll go blue later in the day...
As always you need a mix of forecasts to get it right...