First I want to say thank you for the second payment you sent after I posted my review. Much appreciated that you allowed me to participate.
I do still have a question about this:
All litecoin withdrawals are new coins from our reserves.
When you say the litecoin is "New" it makes me think that you are mining litecoin yourself, and your reserves contain only mined coins. Is this an accurate assumption?
In response to the first time asked the question you wrote this:
Users deposit bitcoin to swap to litecoin. The litecoin they receive come from our reserves. Eventually BTC will accumulate in our wallet, which will later be exchanged to replenish the litecoin reserves.
Which sort of contradicts the claim the the litecoin is "new." If it's coming from an exchange it's not exactly new. The fact that it comes from an exchange might make it harder to trace, but the bitcoin for which it's exchanged could be traced to your service. At this point we have to trust that you are indeed purging all session information.
If the reserves run low, the site will not allow creating a new session until it is replenished. Deposit limits also help control the outflow of funds. The current deposit limits are lower than what we can support, once we have been running for more time without incident, we can increase the limits .
This is actually my bigger concern. And please don't take this as an accusation, but you are a new member, offering a new service. It's only expected that some of us are going to be skeptical. My fear is that, like some other mixing services this is a selective scam in the making. It wouldn't be the first time a mixer allowed small transactions go through without issue, then the minute some one tries to mix 10, 5, or even just one bitcoin, the accusations of scam start coming out.
I mentioned in my review that a letter of guarantee signed with the address you provide to the sender would go a long way to legitimize your service. If nothing else it would eliminate your ability to make the claim that the customer sent the bitcoin to the wrong address, which always seems to be the excuse used by the selective-scam mixing services.
I'll be 100% honest; without a letter of guarantee I would never use your service.