Having bought the INR test unit I have had quite an issue getting the blood onto the test strips, I have called Roache three times and had them guide me through the process, and each time they found a new issue! I did eventually get a none error 5! but apparently even that result was not perfect because I got the blood onto the stip at the top end of the 15 seconds allowed! I have 2 stips left from the two packs supplied , with only one " Acceptable" result so far could be an expensive testing regime, I will report as I proceed. Herefordshire's policy is not to prescribe the strip!! anyone else having problems?