Do you prefer the Target test or Premate and why? Do you think one is more accurate than the other?

I have used the Target test with great success, until this year. I've missed 3 breedings with it. Anyone else having a problem.

I've always used Pre Mate. I know people who have also had problems this year with Target.

I've used premate for a few years, never had a problem. Until this year. 2 kits, dif lot #s, 3 bitches, wrong results each time on each bitch. Had I not used progesterone on 2 of them as well as my common sense, I'd have zero puppies this year.

I have also been a premate user for many years....my last two kits have not seem to work correctly.will find out soon if the last test worked or not.

not sure what I will do next time around.