Yz2-newbe questions

[Lowie]

Hello all.
Getting back into RC-racing after some years "off"
Getting an YZ2 Ca for my boys. And I do have some questions.

Could someone explain me the difference between the FLAT front arms and the GULL-ones? In this I mean: in what circumstances/trackconditions would one use one type over the other?

It seems there are quite some possibilities in using different rear arms, hubs, axle-lengths ... :( all very confusing. For now, I guess I'll tsick to the parts and dimension sused in the manual.

The manual also shows that one can us shorty lipo's but also a saddle pack.
As I still have some saddle-packs layong around I would want to used those.
... but then I notice that on all pictures I only see the shorty used.
What are your thoughts on using a saddle-configuration?
Is there such a big range of disadvantages that this is a big no-no? ... keeping in mind that the car is intended for my boys who are also rather newb's

We will be running on (Belgian) astro tracks. Any thoughts on which (Yatabe) springs I will need for the suspension? I want to avoid buying the whole range of springs from which most will never been used, as happened to me with my dex410.


To end: I understood, by reading through lots of comments on this and other forums that I could use:
* some spare A-arms (also called wishbones around here I think) Front and Rear
* a front bulckhead
* hinge pins
* ...


Thanks in advance for all info and feedback!

[mes]

Congratulations on your CA, you have decided for a great package! The included ytb springs should be a good starting point. On astro, you should be OK with greens in the rear and oranges or reds in the front most of the time. Maybe someone can comment on the new racing performer springs, I have yet to give them a try.
As for arms, the kit rears should be good as long as there is enough traction. Go for shorter arms in slippery conditions, combined with a ball diff. Front gull wing arms are good for on-power steering, and I found the car to be more forgiving when I failed to land with both front wheels at the same time. I never tried saddle packs, but with a modified motor the car likes some extra weight. Marc Rheinard tends to run more than 100 g below the shorty pack , i. e. as low as possible.

[mes]

Double post