Transliterating the Hard & Soft 'G' Into Arabic

In previous posts, I spoke about how certain letters are pronounced. Today I want to look at how the soft and hard 'g' sounds are transcribed from foreign words into Arabic script. I know of four methods:

1. In Saudi Arabia, the soft 'g' sound is written as a jeem and the hard 'g' sound is written as a qaf. This agrees with the common pronunciations of qaf and jeem in that country. However, sometimes people pronounce qaf in its Qur'anic way. I remember hearing a Saudi woman asking her daughter تبغي قاطو (tibghi qateau), "Do you want qateau?" Maybe she pronounced the qaf in its Qur'anic manner because she was unfamiliar with the word. Arabs often default to Qur'anic pronunciation when they don't know a word.
   
2. In Egypt, the soft 'g' sound is written as the Persian letter cheh (ﭺ) and the hard 'g' sound is written as jeem, which is pronounced geem in the urban Egyptian dialect anyway. I remember seeing جراﭺ written in Egypt once and wondering, "What is jarach?"
3. In Jordan, both the hard and soft 'g' are written as the letter jeem. This has brought a new phenomenon into Arabic phonetics: the ambiguity of a letter's pronunciation.
4. The hard 'g' is also sometimes transliterated as a ghayn and pronounced that way (i.e. without attempting to pronounce it as a hard 'g' at all). This is certainly what was done historically. In Arabic, Pythagoras is written فيثاغورس Feethaghoris. The Levant and Saudi Arabia use this method for words like, "gram", which end up becoming غرام ghram in Arabic. The problem is that vowels are not written in Arabic, so this ends up looking like the word for ardour (Ar. gharam). Egypt transliterates, "gram" with a jeem, or should I say geem?
   

A problem occurs when transliterated words cross boundaries among Arab states. One is left guessing regarding which pronuciation was intended. There are two brand names called Goody on the supermarket shelves in Jordan: one is written with a jeem and the other is written with a qaf. This problem sometimes manifests itself as a mispronunciation of a foreign word. In Jordan, they refer to a catalogue as cataloj and shrimpas jamberi (from the Italian gamberi). Similarly, the French word for, "soft drink" is boisson gazeuse. The word gazeuse is written with a qaf, so the urban residents of Egypt and the Levant pronounce it azzoozah.