I have a cheap harbor freight timing light that seems to work. But I don't really trust their diagnostic tools any more. Is there a timing light in the roughly $100 price range that one of you might recommend? Like most things sold on the internet these days, some reviews are glowing and some are horror stories. Honorable mention if there's a self powered/battery powered one you might recommend. A lot of the reviews say that the strobe lights are too dim though.