Looking at replacing my 20-year-old Mosley TA-33M (3-element tribander) with something more modern. The old Hy-Gain Explorer 14 had reasonable performance with its 4-element trapped design, but I'm considering the newer interlaced element designs like the Innovantenna XR6 or building something similar to the ZL2AL multiband project. For those who've made the jump from classic trapped yagis to interlaced designs, what's the real-world difference in DX performance? I understand that more interlaced bands can reduce per-band performance, but the no-trap reliability is appealing. My current beam still works fine but I'm tired of trap maintenance every few years.

I went from a 30-year-old Mosley TA-33 to an XR6 three years ago - night and day difference on 20m! My old TA-33M was still mechanically solid after 32 years, but the XR6 has about 2dB more gain and much better F/B ratio. Worth the upgrade for serious DXing.

Built the ZL2AL-style interlaced beam last year using salvaged aluminum. The 6-element interlaced design on 14-foot boom works all bands with just one feedline and performs excellently. Construction was straightforward and it's been rock-solid through two ice storms so far.

Mosley antennas are built to last - I've stuck with them because they never break, but you're right about trap maintenance. The newer designs eliminate that headache completely. If your TA-33M is still working well, consider it's proven reliability versus potential performance gains before jumping.