If it is a good source it is no problem at all. I would prolly not want to send 100 amps to a home addy though. It is not a huge amount , but if intercepted it could arouse interest.
Thats what sux about the law 100 amps of test prop could be one cycle and they look at it in a way that you would defintly be looking to sell it, when in reality its a small amount. its personal use.
Largely depends on how it's shipped and whether or not any amps break/leak causing the pkg to get flagged/searched. Assuming your source has 1/2 a brain, I'd believe the 90% quote. If mailed to a female name in bubble wrap in a flat envelope that's under 2lbs and nothing breaks, I'd bump it to 95%.
How's your luck? That's probably a more realistic question, although your sources methods have a lot to do with it. This most recent buy, I got all my injectables, var, clo, nolva but, my d-bol got snagged, first time ever.