I have a Pentel PS315 that's older than I am and it's basically the only pencil I've used for the last fifteen years. The 205 and 207 they still make aren't as

I have a Pentel PS315 that's older than I am and it's basically the only pencil I've used for the last fifteen years. The 205 and 207 they still make aren't as good as any of the sliding sleeves from the 1970s or 1980s. The mechanism gets caught sometimes, it's much more difficult to get lead from a quarter push, and the eraser caps slide off easily on the new ones. So I just keep using the PS315.