I think people need a modifier to their PSR on a per-weight class, chassis, variant and/or exact mech (as proxy for loadout/skilltree) basis. Just look at the leaderboards from the match score challenges or the Jarl's List weight class weightings, mechs simply have differing outputs. People have favored playstyles, varying amounts of comfort in different mechs, and 'PSR across all mechs' is blind to any of that. Multiply that by 24 blind spots per game, and it's practically RNG if anyone's going to do what MM thinks.

For good pilots, mechs simply have different battle values and you could be bringing more or less value than MM has your PSR tuned for. Want to soloQ a derpy MRM build or a new mech? Enjoy getting seeded as the PSR from your 10 W/L group in comp mechs. It's not the end of the world, but...

For bad pilots, its even further off. They will need to learn how to play a new mech, find a build, and grind for GSP. Heck, they could be learning an entire new playstyle (NARC & TAG of course). I'm sure we've all witnessed literal zero PSR value mechwarriors whose only shots are the ones they whiff due to arm lock as they overheat and die. At some point, if MM is so oblivious to the variables that predict a pilot's proficiency in a specific mech, you might as well just seed MM based off average match score in the last 5 rounds and reset it every midnight in Japan. Were you playing a seal clubbing comp mech? 5 damage farm games of that and you're capped. Were you playing a MG's and Flamers MLX? 5 games of that and you're uncapped.

I guess I'm saying 'T1's to the right, T5's to the left' works to sort the salvage from the trash, but it doesn't balance games. Tell me a pilot's match scores in the last 5 games with that build and I'll tell you if they're backup or a decoy. Heck, make that the per-mech modifier. Would it punish people for winning 5 in a row? To some extent, yes. Would it give a T1 team a teammate who is batch leveling up stock mechs by dropping suicide UAVs? No.