I have used it a bit in Ubers. Its good in ubers because it outspeed practically every dragon not named Lati Twins, Palkia, or nostalgic ScarfChomp fans (LIKE ME), and 2HKOs (at worst) everything. And U-Turn is just BOSS. But since OU has gotten faster I feel Gene just could fit in better. Maybe in 6th Gen they'll allow it in OU again *hopes*
I would somewhat agree with you on unbanning Genesect, but it's a really tough call. There are a lot of factors that went into its ban, and I'm not really in the mood to argue about something like Genesect. I for one thought it was OP, but not entirely broken. In some cases though, I thought to myself why this thing wasn't Ubers, but at other times I enjoyed having it here.
Hey you know? I think Genesect should be brought back to OU. Specially defensive Heatran litterally went TROLOLOLOL at it all day long. Even offensive Volcarona isnt OHKOed by +1 of any of its common moves, and after SR, Volcy has more than a 50% chance to live and KO Gene with STAB Fiery Dance/Fire Blast/Flamethrower
Some of the most common scarfers can blast past even Scarf variants, and slower scarfers, like scarfmence would become more viable, as it outspeeds Scarfsect and OHKOs with Fire Blast.
If you put it in rain, you basically gave it a second weakness (to water) and did like nothing to the fire weakness.
I understand Download was a cray cray ability, but many things could potentially beat Genesect.
Hmmm I'm not the best with Weather teams but I love Sand and Hail! There are many partners that could help Sandslash sweep, but it's kind of hard to determine if you don't have a base team. Maybe you should come up with a few members for your team so I can have a better idea on what to pair him up with.