I'm just about to start my ES-3 build, I had been awaiting a few luthier tools from Crimson Guitars in the UK to arrive [IMHO better built that Stewert Mac gear at same price or less] and others bit & pieces from Ebay sellers, the UK ones arrived yesterday.
I used the Notched straight edge tool to try and get the fretboard as flat as possible, at first, if I held this tool down at the first fret, I had a relief of at least 3.5/4mm at the end of the fret board, which was a bit of a shock at first [I had thought I might have a hump mid fretboard Ohh, No!].... anyway, I've slowly released tension on the truss rod [one quarter of a turn - leave and hour or more, re measure etc ].
I've gradually managed to get that 4mm difference down to around .5mm over the last few hours, doing nothing but slowly releasing tension from the truss rod....persistence pays off, hopefully I'll get it perfectly flat without any dramas.
I'm glad I did this BEFORE I considered levelling the frets, as if I were to go about it BEFORE I knew the fret board was as level as it could be, I could have totally stuffed up some perfectly seated frets due to ignorance, and gone about ripping them out thinking my fretboard had the hump I first thought it had, and needed planing down. [Well not exactly true, as I know better], but my point for this post is, a LOT of KIT builders WOULDN'T KNOW this, they wouldn't know the trouble shooting steps to take, and what tools to use.
As a Moderator, and as somebody that can effect changes, I thing it would be in not only your best interest, but PitBull kits in general, if you made a sticky , in quite a bit more detail, on the possible challenges a builder might face regarding neck relief/fretting.
I, and I gather you would also know, that any freshly made guitar neck needs some settling time after being fretted.
They will usually tension the truss rod a bit higher than needed to make sure the frets don't pop out while in storage/freight/humidity conditions....fair enough....but KIT BUILDERS NEED to have this known to them, and on the best course of action on how to fix it....I haven't seen a sticky alerting people to this....it should be included with all KIT's IMHO, with a link to the forum on what to do.
Also, maybe a cheap tool made available [Masonite- laser cut, notched straight edge tool - it should suffice strength/stability/durability ] , or included with each kit, unless specified you don't need one....just a idea.
What got me thinking about this was you mentioning you had to fret level. and the post [I'm sure you have read] from that kid in Tassie that had hideous action problems, but had no idea on what the cause was, how to measure it, or how to explain it so he could get help.
A cheap Masonite tool could have help fixed that...still could.
Anyway...nice build......I don't know what sort of White you used, but on my personal experience with semi Gibsons dressed in White, the White crackled....looks OK in a deshellved Keith Richards sort of way .