Summoner could be good with only with small quirks for SRMs and PPCs. Now it's just bad, like many other clan mechs that could be a viable choice and instead there is something terrible that drag them down. Like the huge engine on the Badgoile, the nova that's stuck with loads of energy hardpoints without any quirk for energy weapons, the Baddog that has huge side torsos and can only boat missiles without quirks on it, the Badhawk that is stuck with loads of DHS ( not a bad thing) that take up so much space/tonnage, making good builds non-viable hardpoint wise.
The Badferret is just a fridge on legs, could be viable because the speed could make it a good scout.
The Badlynx is not terribad, it's just bad, 'cause of the hardpoint locations, with better hardpoint locations ( aka a couple on the side torsos) would be perfect and balanced, too slow to be a proper light dogfighter but not a mech that once has lost his ( huge) arms is useless.
Clan lightmechs are just terrible on every aspect, if someone's using them it means that they have only 30-35 tons free in the dropdeck or they are just noobs/for the lulz.
What i would do:
Lynx: add 1 hardpoint per side torso ( missile or energy, whatever)
IceFerret: add 1 hardpoint per side torso ( missile or energy)
Nova: small/Medium laser quirks.
MadDog: LRM/SRM quirks.
Warhawk: PPCs quirks.
Summoner: good PPCs and mediocre SRM quirks.
Sorry, went a bit offtopic talking about the other clan mechs also.