It`s the 2nd gear syncromesh that wears due it not getting much oil when it`s thick and heavy at bottom of the box when cold.I always chnage nice and early from cold to eliminate the problem starting.Gearoil is easy to change a large allenkey shaped bung in the bottom and to fill same kind of thing on the side of the box front facing left hand side,I think it`s maybe a 17mm key .2litres of fully syntetic gear oil will do the trick the sh!t hot stuff is made by redline (I think)