Well, they were responsible for the whole genre of grime
Aren't you mistaking them for Roll Deep Crew now?
Well, So Solid was the first group I recall that really focused on the MCing aspect of garage (which has always been around), turning it from simple oldskool-hiphop influenced party rhymes (MC Creed, DJ Luck and MC Neat) into more edgier songs about the "streets". The success of So Solid pretty much spelled the end for the more soulful and melodic element of UK garage, and grime as we know it came from further paring down this harder, rougher UKG sound and making it even edgier... in fact, Wiley originally came from the Pay As You Go Cartel, one of these groups formed in the wake of So Solid's success... I think when garage started shifting to grime and the El B/Zed Bias sound started shifting to dubstep, is when I lost interest in the UK garage offshoots. Don't mind dubstep too much (<3 Burial) but I miss the tight production, jazzy riffs, and vocal cutups of the first wave of 2-step.
and they kept getting arrested
it was hilarious
i think the rise of the so solid crew was really the beginning of the end of my interest in UKG as a genre.
Asher D recorded the lyrics to Oakenfold's "Ready Steady Go" from his jail cell