I've recently been having some troubles with my Tamron 70-200 f2.8 and its focusing. The focus ring started to get really stiff at closer ranges and it got so bad that the motor wasn't powerful enough to shift it. I rang up Warehouse Express who I bought it from and they sent a courier to pick it up for warranty repair. It's now with Tamron but they've got no idea how long it'll be... could be anything up to 5-6 weeks apparently. Has anyone had any dealings with Tamron or with a similar issue and thus knows how long it's likely to take to fix? I'm stuck at 150mm manually focusing at football until it comes back 
