Difference between Eupho and Eupho SYN

Think you would like the Eupho Syn Trident as it has the flexible p and k tabs which provide additional stimulation. When the head is pulled totally inside, the flexible tabs will have you enjoying pleasure to the max! As the smooth head pivots back and forth, you will experience maximum pleasure!

After many years of owning only plastic models, I recently purchased a Syn Eupho and Helix. 

The main difference for me is that the Syn are more comfortable with the flexible tab, but my experience with silicone is that it's a little more "grabby" no matter what lube I pick, so the movement is not as smooth. But it's a subtle difference. It's 100% going to be a personal preference depending on your PC and sphincter muscles, how hard they flex during the involuntary contractions and how fully they relax, and so on.

I do enjoy the flexible tabs a lot. Normally I use some padding under the tab and I don't need to do this with the Syn so that's pretty sweet. 

I think it's very worthwhile to have at least one model in both classic and Syn material so you can do an actual 1:1 comparison and decide which is your favorite.