Too funny same thing with my bit but then just bought a cheap spade bit that worked. I cheated I just got the point through flipped it over and centered it that way. Some might have been offf but got most of them. I have my sections in diffrent sizes and only have a couple 8 ft sections and had one section recently through out as it had a lot of tree sap on it and just didn't want to deal with it. Since I do my big haunt at the campground it changes up some, really hoping to nail it down more this year as I have been getting the same site the past few years and works pretty good. Just wish I could remember from year to year what I used, lol. But want to chnage it up again a little but not 100% sure as I might need to build some more sections. Maybe next year and just write stuff down better as my pics don't tell me what I need to know. It is like I have an idea but not 100% sure, lol. And with the change it effects the fog that I do, why not sure. Need time to setup at home and test but don't have it. Wife pretty much has plans for me most weekends even though at the same time she is encouraging me and saying that I need to go through thing instead of ending up taking everything out again. usually takes me several trips.I actually had a high speed boring spade bit, it has the screw tip that pulls it through the wood, it was 'too good'. My old drill press did not have enough torque for it. I still used it in my hand drill for the first center hole, but everything after that one the forstner did a clean job. The Jig let me flip the board over and drill from both sides with accuracy. Did 30 boards, so 270 holes in about 45 minutes. Setup out n the deck under a canopy so it was nice and cool. You can see the Vac duck taped to the press to help with the mess.
Now I have to paint and assemble the other 9 sections, then build the End Posts. Can't wait to get it all done. If the whole looks anything like the one section I will be extremely happy. Going away for the weekend so it will have to wait a week or so.