Bit of an update:
Today i used it for the first time properly.... overall its fine, but i had a couple of teething problems.
Firstly the oak tenons were definitely harder to get in and out than the pine ones and some are dead tight, while some were just a touch loose.
Biggest problem though, was i tried reversing the reference sides to see how well they lined up in use..... one pin hole was 2mm out!! Which was a pain.
My makita routers dust extraction is poor at best, so i had to do the holes, hoover, go again to be sure. Overall it works, but its not fast. It'll be good for units that cant have fixings through the sides, but for a cab thats got side panels etc, itd be quicker to screw and glue!
I'd like to try a domino and see how quick they are to set up, use.... the plus sides of a jig like this is that you clamp it on, just lined up with the front edge and theres mo marking etc needed.
I guess perfect fits need cnc accuracy and tenons that are better than a bandsaw cut. Mind you, i think i had a 6mm blade in it when i zipped them out
