I've used Perma Gloss and It is great, Fast and easy...I will add that you should look into purchasing a spary oxegen burner....which is sprayed into the bottle prior to storing it for any lenth of time...
I lost my first 4 oz bottle after only having finnished two rods...even with the cap on as tightly as possible the oxegen in the bottle will allow it to solidify completely in a supriseingly short time....U40 also makes an oxegen burner product....