MafiaRacers-Sorry but your knowledge and statement is UNTRUE.
It does not hurt ALL NIMH.
I wouldnt do it to ANY brand Panasonic
The Sanyo 3000H's didnt like it
The Sanyo 3000HV's LOVED it.
1st generation GP3300's didnt work well with it.
2nd,zebra and SP GP's all LOVE being DeadShorted.
In offroad guys I cant say you will notice a difference unless your THAT good.
In 1/12th scale I can really tell a difference and in sedan.
It's all about how serious you are and if you have the experience racing to even tell the difference.
My stock packs are KNOWN for having tons of punch and work great.I lost about 17-23 seconds of runtime and I could afford to do that in Stock.
I wouldnt advise it for Mod sedan or 1/12th scale.
Les