The question seems to have been asked several times but the answer seems to wander off. What is the difference in Tech line as opposed to lash-it of zing-it. I ran out of zing-it and ordered some Tech line from AHE and it seems to be the same or very close. Am I correct? If not, which do you prefer? I have used a spool of both 2.2 and 1.75 zing-it and lash-it that was purchased from Redden. I love this stuff, and it seems to everywhere around here.