I reffered to 1.5 and 2 mm as "normal" since that's what Ibanez suggests in the manual, but since I consider 1.5 and 2 mm REALLY LOW, what I said still stands
If you want INSANE LOW (to me that's any less than 2 mm), yeah, less bow is actually the best way to go since there's so much buzzing anyway . . . and too much it will cause the high frets to choke.
You know I usually don't explain things fully when I start on something . . . this is another one of those cases and I hope it didn't confuse the OP. :-)
I don't know how anyone can play with action that low anyway, feels sloppy to me and it sucks all the life out of the strings . . . I'd think you could play with 12 month old strings like that, put on a new set and not know the difference.
I still find that you can "get away with" less bow with higher action . . . and it does ease fretting in the lower positions.
I'm at about 3 mm on the low E and about 2.5 on the high right now, and with .5 mm bow I found fretting bar chords in the first few positions difficult (yes, the nut hight is fine.
) but just taking about .2 mm of bow off made things much easier without effecting buzz, or tone at all, and when I tried 4 mm (ouch) I could have the neck dead straight with no buzz or (noticable) loss of tone.
This does bring the bridge up a bit out of the body . . . while my RG 550 is okay my 520 started feeling like a Les Paul (no shim, but the pocket is made so the neck is tilted back) so I actually ended up shimming the neck on the headstock side (one, three folded piece of notebook paper, almost not enough to notice) to bring it down to where I like it. :-)
Of course, YMMV,