I normally do it the same way, but I wan`t to give lowveld`s build a try asap.You can flash without a full wipe if you want, but do not report bugs in that case. To report bugs, do a full wipe. This applies to all ROMs, not just this one, I always perform full wipes, even when updating to a newer version of the same ROM, like amidabuddha said.
Sent from a device waiting for the Kernel 3 source code. WAKE UP HTC !!!!!
But full wipe and new setup during work is not so easy!
Therefore I asked for the upgrade. Can´t wait for a Lowveld ICS experience!