I only charge at 10-15 mv, that could be why you are havin issues with it. I don't have the WC cells but have had no issues chargin my SHV 42's with this setting. You may have it just to high. If your cells are venting all the time when you charge that could be a problem as well. You are not doing your cells any good by going that high.
JRXS Type R, I have four of them!! ;) ( Yes, I still have them!!)