Yikes... I'm really in uncharted waters here. Not only is this my first IOM, but it's the first part of the build where I've really been on my own to figure it out. The pros who have been helping me simply buy theirs pre-made and install it. Did I do that? No, of course not. I bought a fin and bulb and that's it. Pay $140USD or more for a fiberglass fin box? How hard could it be...? Well, I'm not done yet, but so far I think I made the right decision. No, it doesn't look as nice as the pre-made ones... clearly! But it perfectly fits my fin and I made it myself and it was cheap and it should work and I don't care what else you say! Here's how it looks tonight... Here's what I did. First, after carefully mounting the fin to the bulb (see previous post), I was then able to carefully measure and cut my fin using my laser cut fin box template. I cut it almost perfectly using my tablesaw which made an extremely clean cut. Then I taped up