EPT brand test question

Are the EPT brand tests reliable? I have had issues with the FRER curved so much that I've basically given up ever buying them again because of the awful indent and false positives I've gotten. I took two EPT tests back to back days and they were both so faint but there. I'm not posting a photo, just looking for opinions on that brand. I know blue dye is notorious for evaps but these lines showed up well within the time limit and stayed visible. I'll be restesting later of course..