It is way more than a couple of hundred yards poling across a lake from Smuggs to Stowe. You pole across the lake and then hike up to Spruce for a good 10-15 mins.
You sure you've gone the right way? Once you cross the pone, it's hardly a hike up and definitely not 10-15 minutes. It's relatively flat and only a five minute or so pole and skate to where it dumps you out on Sterling. Back when I lived in Stowe and they allowed one free ride up at Smuggs, I would ski the Birthday Bowls nearly every day out and do the traverse. Actually, I ussually parlayed it into two runs at Smuggs. I'd always try and sneak a run on Madona and play stupid when caught telling the liftie I thought Madonna was the lift to get back to Stowe.