Testing my rotors for warpage (I'm getting a nasty brake pulse/grabbing when rolling up to a stop sign), I purchased the Clamp-On Dial Indicator from Harbor Freight Tools. I normally don't buy "precision tools" from H-F, but this particular item seems to get pretty good reviews. Anyhow, am I reading this correctly at .0055"? The rotor service limit spec on my bike is 0.3mm, or .012". Looks like I am OK here, right?