I have a 3.5 NeoTat RCA and i got it in FEB 2012. I use it all the time as a coloring machine with 9-15 mag needles at about 9.5 volts. Ive noticed lately maybe a month or so that its gotten alot louder and its starting to heat up. I clean and lube it regualry, any help would be awesome. Its the original style and not the vivace.