Your aim is to achieve floor 36, which gives you the highest xp level per dungeon (based upon my experience). The 1-29 mentioned above are the floors that you can do with Complexity 1 and 6 when you have 5 players in a large Dungeon with a 5-man difficulty RS Gold. Do not forget the difficulty after performing these floors since the best option is to choose five.
Conclusion When your non-void based bonus equipments reach their highest (for example, Onyx or Berserker Rings (i), Completionist Cape, Chaotic Maul, Amulet of Fury) The void becomes more and more worthwhile. If you're employing anything that is weaker than a godsword, then you're better off using Bandos and barrows gloves.
In general, it's not worth it to melee with deflectors, unless you do possess Dragon Defender and are low leveled and/or have weak gear generally. Range void with any body and deflector: You'll be sacrificing a lot of accuracy , however in this situation it's usually worth it. Range is by far the most accurate method of attack and the added damage can be a blessing (I'm sure amJordan is able to testify from this recent Armadyl confrontation).
I can't be 100% on this but I'm confident that magevoid will deliver the same result as melee. If you have void and the highest gear you'll probably be in 1980s, or even 90s with regard to magic attack bonus. If you compare this to Ahrims and similar secondary equips, there would be greater than a 30-% difference (favoring ahrims). There are still uses for void, but they're just few and far between.
I believe 4 strength was supposed to equal 1 damage, meaning for each 4th point of strength, there would be one point more damage if the strength level doesn't change Buy Old School RS Gold. If that's true, and I don't know whether it's due to the fact that I'm long retired (kinda) and so on, it's easy to calculate the value that your Melee Void set.