What aftermarket tach do you have? Any issues?

I need a new tach for my car so I was curious what aftermarket tach everyone has in their cars and if there are any to stay away from. I currently have a Mallory 10k rpm with built in shift light and rev limiter but it is going wacko. I don't use the rev limiter because I have an MSD 6al box and use the rev limiter on that. I know there are reviews on summit and jegs but I wanted to see what issues others have had before I buy one. I am looking for a 8k rpm with shift light. Any recommendations? Thanks.