Yes. The big difference is TFA Smooth has Triacetin in it. Over time Triacetin will cloud and crack plastic tanks. Same thing with FA MTS Wizard, which does the very same thing as Smooth.
Either one of those (besides reducing throat hit) can also help to blend (versus layer) flavors in a mix. Nearly any sweetener, when used imperceptibility, can help to do the same.
My preference is to use a cream, a vanilla, a custard or a marshmallow (many times a combination of) to take the edge off a harsh mix. Those will also thicken, and enhance, nearly any mix.
Some fruits are harsh. Using another, complimentary, non harsh fruit flavor will help to minimize harshness.
Using a higher VG ratio, and/or lower nic mg, will also reduce harshness.
Some confuse harshness with throat hit. Some like a strong TH while others don't.
Wayne at DIY or Die has an excellent webpage, and video, on the topic. Why is My Ejuice Harsh? (Updated) - DIY OR DIE Vaping
@Zazie can you please add this to the Tips section. Thank you muchly!
Back when I was using a lot of smooth my plastic tanks didn't last long. Pro Tanks were a lifesaver for me. Always assumed it was fruit but maybe it was the Smooth. Some fruits do the same for sure, like pineapple. The only plastic I use now is some KFL's and I haven't had a plastic section go bad in years. I did just start up an orange mix in a KFL without thinking, that should probably go. Guess I could use some smooth in glass tanks and see how it works, but on the other hand marshmallow and cream / vanilla have been doing the job for me.
Thanks for the info. I'll check out that Wayne website later.
