i don't have any smallmouth experience but i have tyed and tried several variations, mainly clouser types with both propellor and in line spinner attachments and had no success with (or without) them on large jaw bass. i have some ice chenille/maribou crappie creations with small prop spinner that i plan to try this week-end. it always looks good on this site and on the bench but no success 4 me yet - probably not the spinners though. i had good luck with pig boat this past week-end and had one tied with a spinner attached but could not bring myself to try it with the other working so well???