25.1 A weak consonant affects the vowels that touch it

You may have noticed that a weak letter not only affects its own vowel, but it can also affect the vowel that immediately precedes. This is usually through compensatory lengthening or virtual doubling (which as remember is virtually NO doubling because nothing visibly changes):

• A weak \(R_1\) affects \(V_P\) and \(V_1\) (but NOT \(V_S\))
• A weak \(R_2\) affects \(V_S\) and \(V_1\) (but NOT \(V_P\))
• A weak \(R_3\) affects \(V_S\) and sufformative (but NOT \(V_1\) or \(V_P\))