It does take some time for a kitty to settle into the testing/shooting routine. My first FD kitty was terrible when I started with him. He would howl and scream and I would cry. Once I settled myself down first and put on a "happy face" when doing the testing he settled as well. Having a routine and a retgular testing area also helped. My Tuxie was very food oriented so I always had some sort of treat after each test...and some days I did a lot of testing because of his erratic numbers. Over time he would come on his own when I told him it was time for a poley test and sometime he would sit and wait when it wasn't even time....food motivation worked very well with him.

My girlie kitty is not food motivated at all but she completely loves her combing and brushing so that becomes her "treat" when I do testing.
ETA Also with both kitties I would sing the "pokey song" and have a constant banter of conversation with each one. Maxie still does not like the testing, so each time I take her to the test area she meows and I say something like "I know girlie...this is not fun for you. But we have to do this test to make sure that you stay safe. You are such a good girlie....etc" Not sure if she follows what I am saying, but it keeps her still until I am finished.