Just in case anyone has bought the pack of 25 from Amazon recently, I'd advise caution. I've attached a picture which shows what I mean.
The bottom test is from the pack of 25. The one above is a One Step, slightly thicker, that came with my FRER. All done with same urine.
I had been getting such faint lines on the One Steps from the bulk pack was panicking I was having a CP. But I think there's something up with this batch of tests. I'm going to email Amazon about it too as I wonder if they are a fake batch or something. Just a PSA if anyone is using these and worrying about faint lines or non-progression.