At 43,000 miles, it is certainly worth considering swapping out the DMF with the cover, plate and bearing.
If there is any rattle from the fly, then best to replace.
However, the DMF can be checked when you have the gearbox out.
It may also be worth considering upgrading the clutch kit to handle your style of driving.
Also, an SMF may be an option for you, but be prepared for some extra drive train noise below 1500 rpm, if you go this route.