Praise Thoth

If palindromes in ID / postnumber you are blessed
(math done by nerd-pajeet in past thread)

3 digit palindromes such as (121) are of the same standing as dubs with a 10% probability.
4 digit palindromes such as (1221) are of the same standing as trips with a 1% probability.
5 digit palindromes such as (12321) are equally likely.
6 digit palindromes such as (123321) have 0.1% chance

ID palindromes are a lot harder to get:
3 character palindrome (aba) - 1.5625%
4 character palindrome (abba) - 0.0244140625%
5 character palindrome (abcba) - 0.0244140625%
6 character palindrome (abccba) - 0.0003814697266%