So I've been making and selling tarts for almost a year now! They are not what I would like them to be and my customers say they are alright. my customers say they last about 8 hours but are not strong the whole 8 hours..as in they are strong a few hours medium a few hours and finish off light. I use the KY 133 paraffin wax and use 1.5 oz per lb of wax. I use FO from NG, RE,CCS and others. I heat my wax to 180-185 add dye and FO and stir at least 2 mins or until the temp is around 175 then pour! I can never smell my tarts anyway thinking its the air flow and possibly my warmer since the bowl seems to leak..but idk what else to do to improve them..any suggestions?