Believe it or not, I've checked my $2 pencil gauge against two expensive dial-types and found it dead-on. The only disadvantage is that you can't get much better than 1/2 lb resolution. The advantages are I can drop it and it doesn't get messed up, I can keep it in my race car at all times, and it's CHEAP. Mike Fennell '95 M3 '83 SRX7 ------------------------------