With drag when fishing spinner pattens (we don't have Tricos) I found that attaching it with a fixed loop knot is the biggest step forward. When I started doing that the number of takes increased dramatically. For this I use a Rapala knot now. Not the easiest knot around, and it has to be re tied more frequently. It is though, worth the effort.
In my experience of fishing spinner pattens tails are better oversized than undersized or absent. As is often said though "your mileage may vary". Try tying a few without tails and fish them, but make sure you have some of your usual pattens with you. Then you can compare.

Cheers,
A.