I took the photo of my 2015-2016 Head Rally and a friend just picked up these 2017-2018 Head Titans. I had checked both of these with a true bar and mine were good out of the factory two years ago and the new Titans also are very good so I just waxed the new ones and will test them out this week. I did notice that the Titans are a little heaver than the Rally's, now the Rally has the PRX 12 binding and the Titan has the PRD 12 bindings but I do not know if that is the difference. I look forward to a few runs on his new skis because we both have the same BSL.
Yesterday I had the opportunity to ski both on the same day and this is what I found.
1. The Rally is a lot of fun to ski, you can ski it fast or slow.
2. You can not relax on the Titans you have to stay focused, it is less forgiving than the Rally.
3. I am not sure how much weight difference between the two, but the Titan seems heaver.
4. The weight of the Titan helps to smooth some crud.
5. The new shape tip on the Titan was easy to get use to, it was not an issue, it just looks odd.
6. I had no trouble getting the 80 MM Titan up on edge and it carves a nice ark.
7. The Titan held on the ICE as well as the Rally and they are both great on ICE.
8. The Rally makes a better short ark turn with ease.
9. The Titan makes a better GS turn with ease
10. I did not ski any bumps with these skis.