Sid, it depends on the weather. If there is a lot of wind and river chop the bigger boat would be nice. But if it were me, I would just bring down the driftboat with the 10 hp kicker from Seattle. If you launch at St. Helen's you can troll nearby between upper Sand Island and the point of Sauvie Island, or go up around to the outer side of Sauvie a relatively short ways to a more productive trolling area where you will see a lot of participants catching fish. There are places to anchor fish the outgoing tide too. If it's windy you can go the short distance up from St. Helen's into the Willamette Channel to get some wind/chop relief; and it's the peak of the Willamette run like it is for the Columbia run during mid-April, so good prospects up there too. If you troll the really deep 50' to 60' water near the channel mouth, troll herring about 12' to 16' deep (watch your fish finder and vary the depth until you get bites). About another mile+ or so up the channel, just upstream of the outlet of Scapoose Slough (which is on the mainland side), there is a great trolling area with depths of 15' to 25', where fishing your lead right near bottom with the bait a couple feet or so up is very productive. ...

Also, you could launch at the lowest Lewis River put ins on the Washington side and fish the areas off the mouth of the Lewis across the Columbia. If the wind isn't real high, it's only about half a mile across the river to Sand Island. I think the park access is on the inside of the island, but not sure. Hope to see ya there. It really is going to be "The Really Big One" of all the Flotillas. And lots of BBQ'd fresh spring chinooks too!