I bought a Tundra Extreme this past May and used it for Elk and Deer this past season. I had it tuned perfect for broadhead flight out to 50 yards. During a practice session at Elk camp I was able to shoot a three arrow group of 2 1/2" at 50 yards which I was very proud of.

As far as tuning, I use a rather heavy aluminum arrows with my fixed broadheads which I have no problem tuning. Just make sure you have the correct spine.