I have a pair of nice Joshi bonsai sheers. However I examined my sheers recently. They are really scrached up . It looks like they may have got sand caught in the blades. The scraches are fairly deep(can be felt if you drag you finger nail over them). So the question is should pony up another 50-100$. Or use the sheers I have. They cut really well i have used them extensively. I mean at one point this was bound to happen(some branches have sand or dirt on them. Thin branches of course). Any help would be great.