Neville's Wand

[Boolean]

No: HPFGUIDX 109428

Just finished re-reading the battle scene in the Dept of Mysteries in 
OotP again, and have been thinking about dear Neville...

It is revealed (sorry, book at home so no page refs.) that he has 
been using his father, Frank's, wand during his whole time at 
Hogwarts. As his grandmother constantly reminds him, he is "not as 
good as his father", but could part of the reason for this be to do 
with the fact that he is not using his own wand - one which 'picks' 
him, as Harry's did in PS? 

I know a lot of people have speculated that Neville's ineptness could 
be to do with having a memory charm placed on him as a child, after 
seeing his parents be tortured. However, Neville is good at 
Herbology - a subject which seems to rely less on wandwork than other 
subjects. As we have seen with Ron, a wand which is not personal to 
its owner will not work as well. Will we see an improvement once he 
has a new wand in HBP?