The legal age of a cigar?

[WittyUserName]

I have a question about how long to age a cigar? Is there a such thing as to long?

Most of my collection is fairly new. I only have three cigars that I have been aging for more than a year. I understand the rule of 3s and I always let my new one rest for the proper amount of time.

The three cigars that I have been aging for a while were all gifts to me and previously aged.

OpusX XXX - 4 years prior 3 under my care
Casa Fuente - 2 years prior 3 under my care
OpusX Fuente Fuente - 1 year prior 2 under my care.

First off, should I continue to let these three age or is there a proper time to smoke them?

Second is there another general rule for most other cigars other than the rule of 3s?

Thanks,
Adam