Blocking is essential in lace knitting and it's always amazing to see the huge change it causes.
Ofcourse some people like to block their lace more than others just as some patterns call for a lot of blocking and some less.
The Spring Shawl Surprise needs quite a bit of blocking and you will actually use it to mould parts of the pattern. Once you start knitting you will all see what I mean.
Below is my Swatch One before and after blocking. Notice how the blocking has flattened the knitting and opened and streched the yarn overs to different sizes. This is what you should aim for when you block your swatch. If you find the swatch gets too big with this much blocking you may consider going down in needle size -or accept a bigger shawl (you will then need more yarn).