Character Names in Heroic Fantasy

For those of you who have some familiarity with Heroic Fantasy (Sword & Sorcery and Sword & Planet), have you ever noticed how many heroes have names with either 4 or 5 letters. Robert E. Howard, who is pretty much considered the founder of Sword & Sorcery, didn't really do this. His main 5 letter hero was Conan, and his 4 letter hero was Kull. He also used characters with 6 letter names, like Cormac and Vulmea, and some with even longer names, like El Borak, Turlogh, Hunwulf, Solomon, Wulfhere, Athelstane. It's pretty interesting, though, to see how many of the writers influenced by Howard used 4 or 5 letters in their hero's name, almost as if Conan and Kull became the archetypal names for Heroic Fantasy. Below is a partial
list of what I've found, focusing on the names by which the characters are usually referred to in the books. Names of characters are on the left, writers on the right.

4 Letters:
MILO morai-------------Robert Adams
BASS foster------------" "
Bili the axe-----------" "
DRAY prescot-----------Alan Burt Akers
RYRE-------------------Ramsey Campbell
NILS-------------------John Dalmas
ALAN morgan------------Gardner F. Fox
BRAK-------------------John Jakes
ELAK-------------------Henry Kuttner
TARK-------------------Colum MacConnell
Michael KANE-----------Michael Moorcock
TARL cabot-------------John Norman
OTTO (DOG) ------------" "
ODAN-------------------Manning Norvil
VIKA-------------------C. E. Owston
WULF-------------------Quinn Reade
GATH of baal-----------James Silke
ORON-------------------David C. Smith
FOST-------------------Vardeman/Milan
KANE-------------------Karl Edward Wagner


5 letters:
KADJI-------------------Lin Carter
VANYE-------------------C. J. Cherryh
GALAD sarian------------Adrian Cole
HADON-------------------Phillip Jose Farmer
KYRIK-------------------Gardner F. Fox
KAVIN-------------------David Mason
baron GALLT-------------Richard Meade
ELRIK-------------------Michael Moorcock
CORUM-------------------" "
COUNT BRASS-------------" "
John DAKER--------------" "
URLIK skarsol-----------" "
JASON marshall----------John Norman
DRACO falcon------------Mark Ramsay
IMARO-------------------Charles R. Saunders
AKRAM-------------------David C. Smith


Both 4 and 5 letter names
ADAM THANE--------------Michael Resnick
ERIC JOHN STARK---------Leigh Brackett

EXCEPTIONS:
Dorian Hawkmoon---------Michael Moorcock
Thongor of Lemuria------Lin Carter
Kothar------------------Gardner F. Fox
Kyllan------------------Andre Norton
Tempus------------------Janet Morris
Kickaha-----------------Phillip Jose Farmer
Fafhrd------------------Fritz Leiber
Prince Corwin-----------Roger Zelazny

MY HEROIC FANTASY CHARACTERS
4 letters--------------5 letters
Thal-------------------Rhing
Jyss-------------------Wahrn
Jaal-------------------Ruenn
Jask-------------------Heril