The 255 character limit imposed by Blizzard can be troublesome enough, restricting that even more is a real bother.  Right now GC5 reserves 55 characters for it's special codes.  How about reducing the number of character it uses by encoding what info it uses.

Currently Info is saved in a fairly simple, but space consuming method which can easily be reduced by encoding it to binary then to ASCII (or Unicode) characters
Since the amount of character is always reserved by GC5 there really isn't any reason to just not always write then (for continuity in saved data length), whether the data is used or just empty items.

Right now, with out looking at the base code, Info I see the is used by GC5 is

[L:85,85/D:240]
Convert that to binary with out the comment identifiers
01010101010101010000000011110000

To Hex to easier see the characters saved so far
555500F0

To ASCII Characters
UUð

That's a saving of 12 of those very valuable characters.