The Blue Pearl get the same size as Red Cherries, maybe a tad bigger.
Doesn't anyone have air conditioning?
I am here in miami and it gets in the mid to high 90's everyday. The AC keeps my tanks at 76-78F. My store has been up for 3 weeks from today. All of the reviews you see on the store were from this past 3 weeks and several were shipped to Cali, Ariz, and Tex. Insulation is the key. Regardless of outside temperatures, if you insulate the package well the shrimp will not be affected. In the USA it takes 2-3 days to ship. It takes 5-7 days to get shrimp from Europe. The shrimp from Europe arrive alive as well (just got a package from Germany on Friday that took 5 days).
The myths that surround shrimp keeping/breeding/shipping are everywhere, it is sad. I cannot tell you how many times per day I have to clear up myths. You wouldn't believe the stuff some people believe after having read it somewhere.
-Ryan