We have two 5 cell accus stockspec 4100 with nice voltage 1,27....
we hava also two big mamma team spec accus.
The big mamma gives a little more speed,
the stockspec gives more torq the first 5 rounds.
Overall we prefer the big mamma's.
the give a more equal laptimes.
One of the stockspec cells was 0v wen we bought it,
the shop replaced that cell. ( after 3 weeks )
We use the cells with an LRP TC and a LRP 10,5 turns brushless.
that is the local stock class.