The LIS contract is not a secret, and it doesn't take a long time to put numbers and conditions together, before it is clear that it is a far better deal to stay in the RHS for another year or two and then take a turn in LGW like most guys have to.
For those considering to join as DEC in LIS i do agree with the first poster..... STAY AWAY, it will NEVER be a good deal and you CAN NOT transfer to another contract once you are in.
It's a scam, and the only way to stop a contract like this is if no-one signs it..... As if