Neu 1515/2.5D or 1512/1.5Y, 2.5D... which motor?

[zeropointbug]

So I got my new Quark yesterday I forgot to mention. I am going to give it a test run today, to see if it can make the truck move forward... :eek:

I dissected one of the caps that were in the last Quark and it looks like there is some sort of serrations, or major imperfections in the plates of the cap. That is maybe what S&T is talking about 'sub pair' caps. This might have been the reason it popped, and the leads were blown off?

I am wondering if I should remove the caps that comes with the Quark and just use my caps?