Maybee I have used too much CA glue... Speaking of glue - I have only tested Great Planes Pro CA medium and slow + ZAP green + slow. They all work the same - no difference what I have seen. The slow/thicker one just isnt needed for how I work. If you're slow working or uncertain how well you will do, try out the slow curing ones. Make shure to add kicker to the plywood part (no glue added there).