My thoughts are don't do it. you have to be really careful combining techniques. adding sn to n will increase vomiting risk and we have no idea if there's a possible interaction between the two. the n works faster than the sn most likely, so making the sn a bit pointless just increasing the risk of something going wrong given that the n is supposedly more effective.And n is meant to be one of the most peaceful and reliable, so if u can get it, just go with n. Having said that, I think from memory you need to get a bit more n I think.