I know where you are coming from but that is incorrect, I can't explain this any simpler than if the following apply;
-monsters have more hp than your maximum hit with a staff
-you have a wand + book with both main hand and off hand spells equipped
then using a wand + book is superior to using a staff.
"you can potentially kill things in 3 wand attacks instead of 2 staff attacks, and since time of 2 staff attacks = time of 4 wand attacks, using the wand/book is quicker".
This applies in both single and multi-combat, if you don't believe my theory, test it yourself with an experience counter for say 10mins and compare staff vs wand.
Although you said you were using a wand of treachery (lvl 70) vs a chaotic staff (lvl 80) so the difference won't be as pronounced because the weapons are not of the same tier. There will still be a significant difference though, I would expect at least 20% more experience/hour using wand + book.
30-Oct-2013 15:17:32