Fabed up some .125 spacers for the Jabiru eng mount. John at laizer logics cut 8 spacers for me out of some old panel scrap. Two 5/16 washers would give me the clearance I need but the mount has a 1 inch gusset welded to it and I wanted more support. I will use the bottom two as is but I had to cut the top two back to the size of a 5/16 washer through about 30 degrees of arc. Put it all together and I now have clearance and I'm using much more of the gusset for support.