If you drop by our Discord https://discordapp.com/invite/4FjnQ2q you can actually already start mining on MTP on our MTP testnet.

Looks to be stable.

We welcome people to give it a go!

Windows:
https://bitbucket.org/zcoinofficial/zcoin/downloads/zcoin-qt-mtptestnetonly.exe
Run with testnet flag
zcoin-qt-mtptestnetonly.exe -testnet
Go to command line and type setgenerate true x (where x is the number of cores u want to use. Take note, each thread takes 4 gigs of RAM so make sure to allocate the appropriate number).

Linux:
Build from https://github.com/zcoinofficial/zcoin/tree/refactor-mtp