Which models for which positions?

Greetings all-

Perusing the Aneros site for a Black Friday treat. The only models I don't have are the Helix Syn/Eupho Syn.

However, I find some models don't do so well in certain positions: The Tempo isn't so hot when you lie on your back, because it gets pulled away from your prostate; the K-tabs can float in space on some Trident models (Eupho in particular) unless you're in the perfect postition; and mostly, I'm wary of that curly tail on the Syns- they get in the way for me, especially when I sit, one of my favorite positions.

I'm almost ready to push that buy button, but wanted to solicit some input from experienced riders of these horses. Do the Syns bother you in certain positions? Do you have favorites per position, like the Tempo when sitting or lying prone?

Cheers, and happy Thanksgiving. My genuine thanks for all the great advice I've gotten from the forum, VeterAnerians and rookies alike. It's a better world with you guys in it.

Best of Pleasures.

Z