As the last poster said, when you make a deposit they will check it for quality, then you will find out pretty fast if it will work. I made my deposits just prior to starting HRT. The clinic said typically one has to make about 3-4 deposits to fill a full sample, at this clinic it was 30 straws. $300 sounds expensive. I paid $300CDN for the initial deposit and then $120 a year after in storage fees. Good luck!
Jenna