My 446-81 was my first unit with the under hood muffler and I noticed that the decals are burnt off as is the paint and have seen this on many units that are for sale. Now the muffler and it's insulated cover are still there and in VG condition but I have noticed that the hood is extremely hot after use. I would like to put new decals on after paint and have noticed the fine resto's by fellow members here but am concerned how long they will last. Has anybody had issues with heat from the exhaust after the resto? I also noticed that the later tractors had openings in the hood and wonder if this was to allow any excess exhaust heat to escape. Has anyone cut similar openings in the older style hood to prolong decal/paint life?