Got my TB-4 (also ordered a TL-1HA that I haven't started yet) a couple months ago.
I have to say the quality actually surprised me.
So I got it all finished. Sorry I didn't document the process. I was way to focused on it and having a lot of fun with it.
I only had two small issue in the assembly which were easy to resolve. The first was the location of the hole for the wiring. When the wires go from the cavity of the bridge pickup to the control cavity, the neck pickup wire prevented the bridge pickup from sitting correctly. That was an easy fix by just drilling a new hole for the neck pickup wire. Super easy.
The other is how the hole is cut for the output jack. The jack fits in real tight. So it's just a pit of work to get it in correct. I didn't have to do anything with that. I was actually expecting to have to do more work than that to get it assembled so this really impressed me.
Once it was together though, it looks like the break angle for the neck may not be correct.
I've got the neck adjusted flat and all, but even with the bridge set as low as it will go the action get's pretty high rather quickly. I'd expect that with bridge set this low it would be fretting out and the strings be practically sitting on the frets.
It's much higher than I'm used to on my other bases.
I'd rather have a semi decent string height where the bridge isn't at either end of it's extremes so that I still have adjustment room.
So my thought is to either put a shim between the neck and body or sand the neck to adjust the angle. I feel like actually sanding the neck will probably lead to making it worse as I fear making a mistake on that.
Anyone have thoughts on how to address this? Shim or sand neck or is there another options I'm missing?
I love the feel of this thing at the first few frets and the balance and weight.
I attached a photo of the finished bass and an attempt to show the string height. Sorry if it's not great. I'm not great with a camera.