Yeah, the mactchlite is like burning gasoline......maybe just use up those by dropping a few in a chimney bottom to get things started faster, then adding in Stubb's or regular other charcoals......would probably not be a good idea to chain them unburnt.....
Aim for your "smoke" to look like this:
Thin, wispy bluish smoke is a sign of a clean burning fire......when it hits a wood chunk, maybe a few minutes of whitish smoke, then back to blue, or almost invisible would be optimum......
Also, if you can "see" the exhaust pushing out the top vent, that's a basic sign of good airflow, or throughput......your kettle is drawing air thru from the bottom & exhausting clean....true at almost any temp except maybe very low for cold smoking (cheese, etc.)