Hi, this question is adderessed to magicians which have S.S.S by Shin Lim. I want to buy this product to perform mostly "smoke from mouth" effect. I want to know what is the difference between 2015 and later version. If you have both which you prefere and why you would recomend this version. And finally where can I buy a liquid to refill the S.s.s. and if it costs a lot. Thanks for help 