Congrats on the streak, Pikiwyn.
I was just wondering about Accupressure + Rollout, and it looks pretty solid. But Stealth rock is pretty useful also.
In one of my first streaks I had a fully set-up Mence that lost to a Donphan with Sturdy + Custap with a Stone Edge crit. But I guess if you've still got two sweepers that's not such a big problem.
I've been using Shuckle, Mence and Vaporeon (Aqua Ring, Acid Armor, Sub, Baton Pass) Which is going pretty well.
The other day I faced the Scarf Rampardos with Head Smash; the only poke who can 1HKO Shuckle. I let it KO Mence and hit Vap for about 60%, by which time it'd died from recoil, and fortunately I was able to stall out the other 2.
Have you faced Skarmory with Spikes, SR and Whirlwind?
I guess Gyarados could probably 2HKO with Waterfall...
Do Androids Dream of Mareep?