I have had both in 1.6 and the 1.7 in my system and the 1.7 is much better. If you do the stand upgrade, cossover and frame modification mentioned in the prior post the 1.7 will kill the 1.6s further. I drilled and tapped the stands and put spikes on both the 1.6s and the 1.7s and that was a huge improvement. The 1.7 has better everything. Once the 1.7 breaks in you cannot believe they retail for $2000.00. Do not get me wrong the 1.6 is very good but the 1.7 is better!
