I finally got around to hooking my K2 to my scope to look at the results of the keying mod. In addition to the longer rise/fall times, I noticed that the 'jitter' I had previously reported (a periodic shortening of dits and dahs) seems to be gone. It looks like Wayne has made several improvements in this latest firmware! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco