I bought the original X right when it came out 3 or 4 years ago and bought a special from SMC for (2) 3s 9500s+. I haven’t taken care of them at all and they’re so puffed I can just barely close the battery trays but even as heavy as they are they still pull wheelies and last forever. ...I ordered the “100c” spektrum 3s’s hard pack and they’ve yet to pull one wheelie and really don’t seem very powerful in contrast. Can lipos get stronger over time? Anyone have experience with the spektrums? I bought them cause of their safety features