TH8 Elxir Upgrades

hey guys,
i have a couple questions about the order i should upgrade stuff with elixir as i have recently hit th8.
I have a de drill and its currently upgrading to lvl2. So, what order do u guys think i should upgrade the following buildings..-
1) Barracks-10(PEKKAS)
2)Dark Barracks-3(VALKYRIES)
3)Spell Factory-4(JUMPSPELL..ithink)
4)de drill-3(after its done)

my lab is upgraded and i am currently getting lvl 5 archers upgraded...
NOTE- the order above is not the actual order i have in mind, just listing the possible options...

thx guys
tw33t

You cant upgrade your spell factory til th9.
but if i had to choose, i would choose the DE drill.

I could be wrong, but I thought spell factory wasn't upgraded to level 4 until th9.

Upgrading barracks is helpful since it allows you to queue more troops at one time. Useful when you want to build an army of wizards at one time...

oh thanks for pointing that out guys :)

Don't upgrade to PEKKA of dragons, they're useless anyway.
I don't upgrade my barracks beyond healer.

So I think I'm just slightly ahead of you. . .

1) I have one lvl10 BKs - loving my lvl1 PEKKA. About to push my second lvl10 BKs. PEKKAs are expensive but pretty damn good IMO. I will def be doing at least 3 lvl10 BKs for a faster PEKKA force.
2) I have lvl2 dragons - ditched them for now. There's an art to it. Get "mass dragon's" right and it's an easy 100% 3 star, get it wrong and you could be lucky to get a 1 star and feel like you've been punched in the guts.
3) Just got my lvl 3 Dark BKs tonight. Valkyrie is going great guns, not many peeps seem to use the though. Not sure why.
4) DE drill - I'm still at lvl1, but looking to upgrade soon.
5) Can't get jump spell til TH9.

Cheers,
BG

id do thee drill. if ur planning on using valks or pekkas do that instead. u cant egt lvl 4 SF till TH9