Dual-core wands?

[colleennilson]

No: HPFGUIDX 181529

--- In HPforGrownups at yahoogroups.com, Lee Kaiwen <leekaiwen at ...> wrote:
> 
> The implication of the passage is that casting a spell while holding 
> three wands triples the spell's power. But then why isn't every wizard 
> beating a path to Ollivander's to pick up a couple of extra wands and a 
> tube of superglue?

I wonder whether it was the fact that Harry used three wands, or
perhaps that one of those wands (we later learn) was the Elder Wand. 
Rowling has said that the wand chooses the wizard, and wands do seem
to be more or less sentient, so perhaps each of the wands (and the
Elder Wand in particular) recognized that Harry was a powerful wizard
and therefore cast more powerful spells.

I think that the relative strength and/or skill of the person using
the wand has to come into play somehow.  Was Dumbledore so powerful
because he had the Elder Wand, or was it because the wand recognized
his strength and therefore worked that much more efficiently?  Since
Squibs and Muggles can't use wands, I tend to think that there is some
sort of synergy between the inherent strengths of a wizard or witch
and his or her wand.

~ Colleen