Jason, out of the 3 Blades and 99S, which do you find to be the most arm-friendly? I'm curious since you seem to be careful about that and have hit with all of these frames. The 98 18x20 seems to get the best marks on the TW vibration frequency tool, but tester comments seem to indicate the 93 is the most comfortable. On the 99S, I'm wondering if the open string pattern makes it feel softer than the RA would indicate. Thanks in advance!