I went out and bought the 5.25oz lucas UCL bottle just for use as dispensing FP. $4 measuring bottle! I hated having to use a funnel for the FP.
Lucas advertizes specifically that UCL will increase mileage, if it does better than FP it would be a good deal as a gallon is around $25. Although I don't think I see an increase with either FP, UCL, or techron/acetone/etc on my car. At least the fuel injectors are clean as **** now.