Looks good Greg. I love those "one press starts".
Regarding the tach, its probably just a lubrication issue with the analog meter. At a low RPM, the meter gets a very low current which isn't strong enough to break it free. Once you rev up, it gets a stronger current that breaks it free and then it works fine. I'm not sure if its possible to add lubrication to it. I've never had mine apart, but analog meters are usually sealed. Just curious, but does this happen more when its colder or all the time?