Ashar, no not cw_poll(), it is modem_poll() that is not getting called often enough. In sbitx_gtk.c this call is at line #4257 inside of ui_tick(). modem_poll() in turn decides what to do for each of the modes, but in the case of CW modem_poll only gets called ~once per 20 milliseconds, so no matter how fresh the key_poll data is it doesn't get looked at enough.
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Mike KB2ML
