2nd gear hacks while switching down!!!

Is it normal, that the 2nd course in winter hacks when switching down? Have tested times, at about 25 kmh it fluffs like a bee. Also when switching up! If I want to give speed and switch from the 3rd to the 2nd I always have to force abissel in. Gear oil I have already changed. At honda TAF XS- castrol 75W90 got! But did somehow not bring anything! Well-known said warm wish synchronous ring in the eimer!!!!!AHHHHH! Is that true or is that just so no fun in winter? b yes too, that I had 2-4 times in the time where I have it (10 months) when switching down the course not really in it! ABer it can not be because of the few times or? I heard that you get this with molly-cott (addition for synchronous rings) something in order again!? Please help me! Am at the moment only pursued by the pitch! who wants to have it! (g)