The correct spelling of the phrase "more wabbling" can be confusing due to the multiple ways the letters "w" and "b" can be pronounced together. The International Phonetic Alphabet (IPA) can help us understand the spelling more clearly. "More" is pronounced /mɔr/, while "wabbling" is pronounced /ˈwɑblɪŋ/. The "w" in "wabbling" is pronounced as a /w/ sound, while the "b" is pronounced as a /b/. Therefore, the correct spelling is "more wabbling" with a double "b".