For some reason, Heavy Slam is always listed under "moves" while Heat Crash is always listed under "usually useless moves" even though they use the exact same damage formula and Fire is arguably a better offensive type than Steel (especially for coverage were Flare Blitz is rare, but I'm getting off track). Additionally, unlike Gyro Ball, neither weight move takes into account the user's weight, as Heavy Slam is listed as a useful move on the 2.2 pound Flapple.
There are some other oddities with move usefulness (like Life Dew being useful and Belly Drum not) but I'm going to save those for one big suggestion (with a spreadsheet), so in the mean time, either have Heavy Slam and Heat Crash be useful or not based on weight, or at least have them both be the same level of usefulness.
There are some other oddities with move usefulness (like Life Dew being useful and Belly Drum not) but I'm going to save those for one big suggestion (with a spreadsheet), so in the mean time, either have Heavy Slam and Heat Crash be useful or not based on weight, or at least have them both be the same level of usefulness.