Dex410 v3 setup for wet astro track help!! Please
 

I have my 410v3 but I realy hate it at the moment as it will not handle at all!!
I gave up with it an moved over to my xray xb4 an done a lot better.
I want to go back to the dex410 an make it work some how but I'm abit of a newbie an unsure on a good base setup for a wet astro track.
The track smooth with a thew small jumps an twisty corners.
I have looked at set up sheets etc but just struggling to try an understand were to start from and what tweaks do what.
It has the rear flexi brace as well on it but again I don't know what to alter to get what results.
When I drove it last time in the dry it just felt horrible and under steered on ever comer an long straights it was in stable.
Also all the setup sheets show that no one realy puts on the roll bars? Should add them on or leave them?

So asking for a good wet base setup an then a short guide on what tweaks to make
Many thanks