Calling the "A", instead of "W" functions might be some small perf hit (don't know if it matters), but for some functionality you need to call the "W" functions

Calling the "A", instead of "W" functions might be some small perf hit (don't know if it matters), but for some functionality you need to call the "W" functions, for example to break the limit of 256 or was it 260 characters, up to 32768 (or was it 16384). :)