Wobbles, Venoms, What is going on?

I have just been out getting used to my leathers and experienced the worst speed wobbles I have ever experienced.
I am attributing this to my Venoms and how I have them set up as.
I have done this hill lots and lots and have never had any problems. For those that know the hill its the one outside my house.
The only think I have changed since last time I did the hill is my bushings.
Currently I have Downhill Barrels 85a in my front truck and Eliminator 90a in the back.
For those with experience with Venoms what is the best way to change this up to become more stable?
Barrels at the back or a barrel/eliminator combo?

i find 85a is too soft for

i find 85a is too soft for barrels. I have red (90a)/green(93a) barrel combos front and back and find that super stable.

hmmmm

i got them to get something the same duro as pumpkins as thats what i had been running. then i had something to compare them with.
would eliminators on the bottom and barrels on the top work better than a double barrel?

Dont know about eliminators

Dont know about eliminators sorry, try it out eh? also just try running them a bit tighter, venoms seem to handle tightening fairly well.

Barrell top/elm bottom feels

Barrell top/elm bottom feels much better just standing on the board will report back once ive bombed on them