SpyGlass, The idea behind gluing with hot iron is that when you heat up PVA glue it melts and as soon as you stop applying heat it solidifies very quickly (~ 5 - 10 seconds). The benefit of this is that this can be repeated multiple times.   1. I dryfit the plank, make sure that it fits nicely where it supposed to go   2. I apply PVA glue (I'm using Weldbond white PVA glue) on the back side of plank and make sure to spread it with a toothpick so it covers the whole plank