Configure your mining software to point to mvis.ca:8080. Port 8080 is set up for the RPC protocol, which is compatible with most 0xBTC mining software.
If you would prefer to use the Stratum protocol, use mvis.ca:8090. You may need to run a Stratum Proxy if your mining software does not support the Stratum protocol. See The FAQ entries below on running a Stratum Proxy.
This pool uses a Pay-per-Share (PPS) scheme. The basic idea is that you are awarded tokens on a regular basis, every 4 hours, regardless of whether the pool mines a block or not. Your rewards are calculated based on your submitted shares. This is in contrast to the Proportional payout scheme used by a lot of pools, where you only get tokens when the pool mines a block.
If the mining pool hits a run of bad luck and doesn't mine a block in a while, a portion of your rewards may be held back depending on the current pool balance, but it will be kept on your account and paid back later when the pool is having better luck.
The Pool Token Balance is where your payments come from and where mint rewards are deposited to. This is what makes it possible for the pool to payout on a regular time schedule, even when it has not mined a block. The idea is that hopefully the payments and the rewards will balance out. I initially seeded the pool account with 150 of my own tokens to kick things off.
A holdback is when tokens that you are owed are transferred into a special holding account instead of being paid out to you. This happens when the pool balance runs low due to a spell of bad luck.
Remember that as a miner, your token rewards are calculated assuming that the mining pool will be able to mine blocks at a perfectly consistent rate, but of course it doesn't work that way in real life. The actual profit of the mining pool is subject to variance, or to put it more simply, luck. If the mining pool has a run of bad luck and doesn't mine as many blocks as expected, the pool token balance can run low. When this happens, a portion of your mining rewards will be held back and put in a special holding account. Later, when the pool has better luck, the tokens will be paid back to you.
The Stratum protocol is a way for the pool to provide your mining software with the necessary parameters it needs in order for it to mine shares. These parameters change every so often, so once your mining software has connected to the pool (subscribed), the pool sends the parameters to your mining software using the concept of "push notifications", similar to SMS (text messages). (If you are a computer dev, you could also compare it to a websockets connection).
This is in contrast to the legacy RPC protocol. RPC stands for Remote Procedure Call. Under this protocol, the mining software continuously queries the mining pool to see if any of the mining parameters have changed, often multiple times per second. It does this by sending an HTTP request. This is very wasteful and inefficient, given that the mining parameters typically only change every 10 minutes on average.