This shouldn't make any difference.
Code:
    MyArray Var Word(10)
    MyWord Var Word
    MyByte Var Byte
    MyBit Var Bit  
    
' Creates;
    _MyArray   EQU RAM_START + 018h
    _MyWord    EQU RAM_START + 02Ch
    _MyByte    EQU RAM_START + 02Eh
    PB01       EQU RAM_START + 02Fh
    
    MyByte Var Byte
    MyArray Var Word(10)
    MyBit Var Bit
    MyWord Var Word

'  Creates
    _MyArray    EQU RAM_START + 018h
    _MyWord     EQU RAM_START + 02Ch
    _MyByte     EQU RAM_START + 02Eh
    PB01        EQU RAM_START + 02Fh