Back tension is the way to go my friend. If you are ready to get serious about improving your scores, give a good back tension release a try. If your bow has a soft wall, you might tend to draw your bow a little further depending on how hard you pull. The Spike is a fine release, but most guys use something with a hinge like a Stanislawski. I use a Stanislawski Luxor with a clicker. Just my 2 cents.
Shoot Straight!