If you change you're name, you're sort of starting from scratch and have to build up the name again. 'RedHarvest' is pretty recognized already on NG, so I'd say stick with it, unless you want to drastically distance your self from the work you've done so far.
Plus it's a good name :)
And at least it's better than Ockeroid :P No one can even pronounce that
Graeme
On a scale I think RedHarvest is an excellent name :)