Posted 06 August 2015 - 10:39 AM
If you're running on a limited number of RaDerp modules, I would prioritize non-ECM 'mechs over ECM 'Mechs. Certainly there are times when RaDerp can cover your ECM in counter mode, or someone Beagling you, but the overall impact of the module, even in the current ECM-heavy environment, is still reduced. You'd get more mileage out of the module using it to cover a non-ECM heavy or fatbro than slapping it in a 3L. I'd go with something like TIG in a 3L over RaDerp myself, especially if said 3L isn't carrying an active probe because ECM kills half of what active probes do.
That said...if money is no object and a theoretically limitless number of RaDerps are available, or you can tolerate spending a year and a half moving modules around, RaDerp still has more impact on a 3L than, say...Speed Retention, or Improved Gyros, or most of the other completely worthless modules out there. In that case, go nuts.