I've got a heavy left wing as well. It's been this way since I bought the plane 4 years ago. As I did not build the plane I'm looking for someone who can help perform the required corrective work with/for me.
The left wing is heavy even with full corrective mechanical trim, which is the position the manual trim lever is always kept at. In this fully-trimmed condition, the roll tendency balances out after using ~8-9 gallons of fuel from the left tank after started with full tanks. The plane is certainly completely flyable as is, but it handles even better when the roll imbalance is fully balanced out.
I've read the Van's corrective procedure, done the straight edge check, and believe some of the aileron hinges may need adjustment and the aileron linkages could also use a bit of adjustment.
I just don't have the tools or aircraft modification experience to perform this work myself in the manner and timeframe in which I would like it done.
I'm based in Durango, CO and will gladly fly to wherever I need to in order to get this work performed. Please kindly PM me with any suggestions.