Right.
I'm notorious for championing D'Addario EJ-16 lights, .012-.053 pb. (Guild doesn't offer strings any more, last I checked)
D'A actually made Guild's L350 set during that time with one variation: Guild's L350's had an .025 G string.
I used the Guilds or D'A's since day one ( I bought it new) and buy an .025 single to sub into the D'A set, and my 20+year old D25's neck's still perfectly aligned.
So I back your decision to go with lights to preserve the neck set.
Guild shipped all their dreads with L350's from at least '96 through end of Corona, it's on all the spec sheets.
Set up height from Westerly was 5.5-6/64th on bass E at 12th fret and 4.5-5/64ths on treble.
All 3 of mine came out of the box that way and I love it.
Awesome, thank you. Just the info I was looking for, so target .12-.53s. Those are the exact strings (I think, if they are Phosphor Bronze) I use on my Yamaha, so I have 2 sets right here ready to go.
Everyone always talks about the great bass on these guitars -- do you get it with lights? I'd sacrifice a little of that to avoid a neck reset. Do you have any thoughts on using mediums and then down tuning a half step? That would be the other option to try to get the best of both worlds.