I'm on over a gram a week for 6 weeks now. No problems at all. Best test I've ever used. Last week is coming up.
If you rinse it properly, you 'should' have zero problems. I rinsed using a whole gallon and a half of distilled water. Some may say thats a bit much, but I'm glad I did. Either way, you should always have anti e's on hand just in case, that goes with any kind of test, syno or not.
Freak, start nolva now. You don't want to risk it.
02, it took my kit about 3-4 days to come. I used credit.