The drop rate of a Covert ST from case is about 0.01%. The drop rate of a Covert Knife St is about 0.03%. Let alone Exceedingly Rare ★.

In fact, the Steam case skins drop rate is even much lower than some case opening site so I don't open on steam anymore. And hellcase is suck and scam so I choose the other sites. I started opening from free case and money and I collect each site free things, Vreecase.com give most, 2 free case, 1 free skin and free 0.6$. The second is farmskin.com, 1 case and free 0.45$.

This is based on my experience summed up the methods and techniques about how to maximum profit on vreecase.com. Vreecase. com is illegal and I withdrew all my skins and money. It's the CSGO case opening site with the highest drop after testing many sites. First of all, I have to tell you that CSGO case opening depends on luck and experience. Here I am sharing my experience of winning profits in case opening.

1. Start From Free Items & Money
Free Gift - Verify your email on Free Gift page to get 0.6$ bonus easily.
Giveaway - Follow some simple steps to increase chance of wining odds. I have won a ★ Karambit | Night and a AK-47 | Bloodsport, good experience, LOL.
Add vreecase.com To Steam Name - Do it and there will be a free case and bonus for 3 continuous days.
Share To Friends - You can get one case from twelve top cases.

2. Less Risky Leverage
Doge Case cost little, only about 0.19$. The skins price range from the Doge Case is large. The best skin I won from it is M4A1-S | BRIGHT WATER, about $15.00. The worst skin I got from it is a P250 | BOREAL FOREST, about 0.03$ almost equals 0... However, it doesn't make lost much at a low risk. This is a good leverage to maximize returns without high risk.

3. High Profit
For the StatTrak Case, they are fairly priced at $9.90 and you need to have a considerable amount of investment ready first to open them. It does have about 30% of the items that will guarantee you to make a revenue with the high wining rate. I have won two StatTrak™ AWP | Asiimov from them so I love the StatTrak Case most.

4. Try just one time
There is a case you can have a try if you meet your lucky day - Karambit Case. I have viewed some post by 2 players that they had won ★ Karambit | Lore from the Karambit Case. I did not got one and I wish I was as lucky as them though I already won much.

5. Contract
How to deal with the worst skins you got? I suggest you do not sell them because they are not worthless and you should put them in a contract to have a chance to convert them into a rarity.

6. Other Methods
If you are talented in writing and social relationship, you can join their Make Money to earn more.

Finally, I hope my experience can help you and wish you all have good luck！