It also depends on what you want to use the Chinchou for. I'm guessing T-Wave hax lol
Btw, is it for NFE or are you planning on evolving it?
Also, I have some nice new strats for the OU that I've either encountered or came up with myself
Specs Swampert: Essentially, the name of this strat says it all. Swampert with a whole range of special attacks and a Choice Specs is highly unpredictable (as I've only encountered this ONCE, and it was beastly), especially if you use it as a lead. Most players will predict the Stealth Rock. Most players will Taunt to prevent the Stealth Rock. Most players will lose at LEAST one Pokemon from this.
Scarfed Gliscor: Not entirely sure if this is a standard set or not, but I've seen XENON use Scarfed Gligar in NFE many times and how much it pwns, so I figured I'd give Gliscor a try in the OU. Essentially, max out its attack and speed EVs, make sure it's Adamant and give it a whole range of Physical Attacks. I gurantee that this will cause the shitting of pants. Incidentally, with the Scarf and an Adamant Nature, Gliscor even outspeeds Jolly Electrode with max speed. So it's worth it
Infernape Lead: Not quite what is expected. Essentially, what I have atm (which can work in given circumstances) is Vacuum Wave, Flamethrower, Grass Knot and Endure holding a Petaya Berry. I am considering replacing the Petaya Berry with just a Focus Sash and Endure with Nasty Plot, but anyway, the idea behind this strat was INITIALLY a counter to the Specs Swampert lead. But the basic idea is you take a 0HKO hit after using Endure, activate Petaya Berry, then attack. I use it as a lead, but ultimately I usually swap it out to some other Pokemon in my party :3
Unpredictable Gengar: Essentially, the idea behind this is to exploit a very nice combination on a very nice Pokemon - Mean Look + Perish Song. Mean Look is used to trap the opposing Pokemon in (duh), and Perish Song is for dealing with those nasty, hard-to-kill stallers. I give it Focus Sash so it can get the Mean Look off or just so it can gurantee a kill on some of the harder-to-kill attackers. The other two moves I have on it are Shadow Bolt and T-Bolt (pretty standard Gengar attacks, although Focus Blast is often used). Most people will switch in a Blissey (if they have one) on the Gengar, so the Focus Sash also allows it to test whether or not they have one. Then Perish Song f***s it up :3
Eevee Loltactic: Basically, I saw this used by XENON. You want two moves - Protect and Last Resort. I gather Life Orb should be used here, but I'm not 100% sure. You could use Silk Scarf for less effect but no damage recoil if you really wanted to. Or Focus Sash to gurantee at least 1 hit from the Last Resort. Use this as a lead.
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NOTE: As I have already stated in the name, this is a loltactic and should not be used as an absolute pwnage tactic. Essentially, any good player could set up a Sub-sweeper on you if you overuse this tactic, so be aware! Raikou is one such example of a Sub-sweeper! Raikou will rape any orophis left unprotected!
Oh, one more thing...Errm, what's your Pal Pad Code?