We just updated from 9.5U4B to V11 and upgraded our main jobs to GFS.
Now we have a specific need with only yearly backup (4 years, 4 points)
I would like to avoid misclick

I saw the limitation :
[For yearly GFS cycle] If you enable only the yearly GFS cycle, you can encounter the case when there is one full backup and a large number of increments for the whole year. To avoid this case, it is recommended to enable an additional weekly GFS cycle. Weekly GFS cycle will update the backup chain every week which will allow to remove excessive increment files.
Is it mandatory ? I just want yearly backup and not weekly backup in addition (this job has more than 20 To of VM)
In my mind i would like to put 4 x 365 in retention (days) and put active full on last sunday of November
Is it the right way ?
Thanks for your help