Vesting only applies to VOTE + DNS + PTS + AGS.
There is some confusion over whether or not claiming your funds early results in losing everything else...
I think that you can claim them as they mature.... so after 1 year you are 50% liquid and 50% locked up. After 2 years everyone should be able to claim 100% of their allocation.
This is a compromise on the liquidity proposition... the other idea would have incentivized people to hold on for 2 years to avoid losing anything.
In other words... everyone will eventually get 100% of their allocation. No penalty for claiming your matured BTS.
It is linear... each block you can unlock some small amount of shares... make a transaction with the "fee/share ratio is favorable".