Neil,
Sorry to burst your bubble but with the current proposal you will not know what days you have any further ahead than you currently do.
Do you really think that the proposed roster stability is going to work??????????
Also the thought of 3 x 20 days off sounds nice but if you look closely you will find the comapny are actually getting 9 days leave back off us free of charge!!!!!!!!!
If you don't believe me I will explain all next time I see you.