Do you mean fantom?

I currently use a 6000 in my 21.5t touring car, 80c. Previously used a second hand silver back 90c 6400 pack, was slightly heavier. Could not tell a difference between the two

4wd mod buggy used to use nvision shorties. Nice and slow discharge. At the time slightly more pricey than the a spec Turnigy but I preferred the slower discharge.