As this is a great 'at home' idea, I think it would still be recommended that you take it to have it professionally balanced. Although you may have it balanced from spinning the wheel by hand, once you accelerate the wheel, just the smallest counterbalance is going to amplify significantly. It just wasn't enough to overcome the resistance in your bearings while you had it balanced on the bench. You might want to also wait and get a tire installed before you balance the wheel. The shop in town only charges a few bucks to balance a wheel off the bike