I ran into a UNC trinary stack yesterday which was also a ohhh soo close to a super repeater IF only the leading number was a 5.
Some numbers I pulled out and I thought were cool was sequential tri's. First time I ran ran into one of these.
5646 4644, 4645, 4646
5646 4654, 4655, 4656
5646 4664, 4665, 4666
5646 4444, 4445, 4446, 4454, 4455, 4456 etc
5646 4554, 4555, 4556
5646 4664, 4665, 4666
Last time I ran into a tri stack I gave a bunch out to the tellers (after checking with management).
Peace