Tessa tests a Q16, which is noticeably old and misshaped, and probably expands larger than might be expected. Then she tests a Q16 stuffed inside a Q18, which performs much better, and gives her quite a surprise when it pops inside the Q18, without damaging it.

Tessa tests a Q16, which is noticeably old and misshaped, and probably expands larger than might be expected. Then she tests a Q16 stuffed inside a Q18, which performs much better, and gives her quite a surprise when it pops inside the Q18, without damaging it.