I haven't heard no complains on the c&l,but its old technology.Most people like the granatelli programable meters.I dono,i like the sample tubes more convenient then sending in and having them reprogramed.
just my opinion tho
havn't heard complaints on C&L?? havn't been around long. i dont see anythign wrong with them and i will be getting one soon, however there are many people on here that don't like them and or have had problems with them.
I have the 73mm tube with the stock sensor, it got me an extra MPH in the quarter but it was also about 25 degrees colder when I returned to to strip so... I don't know.
It hasn't caused any driveability problems but like stangjunkie said, a lot of people here don't like them.