Tough call on, "how bad," it does not ever happen during daily driving. Even some spirited driving it might not happen, today on my way home from work I was shifting in the 4k range (no traffic
) and had no rattle. Yet other days I can be in third and shift at 4200 and I have a rattle.
Now with the time I have spent with it I think I am narrowing it down to third gear might be the only gear that rattles. Meaning if it rattles in 3rd it will rattle a little in 4th and some in 5th. Yet if none in 3rd I do not have the problem, this theory is not 100% proven yet, and I need to spend some more time recording when it happens.