One picture is always worth a 1000's words.
easiest way to add a micro launch rod to your current Estes porta pad is with a spent 18 or 24mm motor casing, a .049" or .050" x 9" to 12" music wire "rod", a 2-1/4" x 1/8" launch lug and a little epoxy.
The one pictured below is covered with Vinyl just to finish it off but plain works just fine. Do keep the blast deflector under this slip over addition and it can be left in place while flying other size models as well
Once you've been completely won over to the micro Size then you'll want to create your own micro launcher. I now have my set-up that mounts on a digital camera tripod and can handle micro rods, pistions, towers, and relay for clusters.
Hope this helps.