Thanx for thinking along.
Problem is, that I don´t want my customers to have to upgrade once or twice to get the proper rights. Also, I´m running into time schedule problems in this way. I can´t set a remaining fixed time of three months on shopping subscription after expiration (or unsubscription) of the others.
Fall-backplans are ideal for fasing out unsuscribed members step by step, without simply killing them.
That´s a neccesary feature for a lot of businesses.
(think of photographers who want their clients to remain able to access their photo´s some period after subscription expires, or like me, build-up credits to be used, or any other real subscription type business where you want to support youre subscribers after expiration of main payed membership.
hidden plans linked to subscription of other plans would do most of the job, or fall-back plans. Think one of them should be enough.