Tube cement for slow drying. Allows some movement to properly allign pieces such as fuselage halves.
Cyanoacrylates such as Super Glue for smaller parts that need little or no allignment. Use Zip Kicker to make an instant bond. Instant adhesives such as Super Glue dries harder than the surrounding styrene plastic so be carefull when filing and sanding.
Never use a standard steel file on cast resin. The resulting dust will clog the file and require frequent cleaning. Go to a beauty supply shop and get some four grit sanding sticks. They are cheap and last a decent amount of time.
Styrene cement does not work for injection molded kits. Use five minute epoxy for parts that need positioning, cyanoacrylate for the rest.
As someone stated earlier, finish a model. When a few uncompleted projects pile up it's time to finish one, not start yet another.
On that note I better get back to the Yak-11s project.
Tom