Hello, hope everyone's year has been going well! Anyways, I used to have 1305 but recently replaced it with an 830 and sold the 1305. I love the 830. But if I were to get an 1800, is it any different from an 1305? If anyone has both can you please give your opinion? Is it the same exact bristles in a different handle b/c it certainly looks that way. There has to be something as to why there is a 1800 and 1305? Thank you for taking the time and reading this. You guys have a great day!