[Sumilidon]

Hello all,

I am returning to the hobby and have purchased the various items that have been recommended to me - most of which is second hand.

The down side of this is that sometimes not all the parts came as they would have when new, and my knowledge is some 10 - 20 years old of wiring these things up.

As such I was hoping to use this thread to ask questions and generally query this build on a bit by bit basis as they arrive (so I'm not trying to learn it all in one go.

So, first question.

I have a lipo charger and saddle lipos (35c, 5000mwh). I need a wire to charge and balance them (which is easy to get) however should I be charging the 2 saddle packs together? Or would I only be abl to do it 1 at a time?

Second question:

I have a 2.4ghz tx and rx - can I set up the tx to work with a second rx? (as in a second car without needing swap anything around, they would not run at the same time). Beforehand I would swap crystals but in these I cannot see how I would do it.

Third question:

Not electrics, but what actual effect do harder and softer suspension springs have on the handling?

Forth question:

When my motor comes through, it is an 8.5 turn 4000kv and I am using a factory B44. What size ?cog? should I have on the motor to work with the stock ?cog? on the b44 without stripping any teeth? Do they make metal versions?

Any help much appreciated, and I'm not 100% with the terminology as you may have guessed