applying a single frame audio dissolve centered on cut using copy and paste

so I often use a single frame dissolve centered on the cut to smooth out audio edits quickly. I could checkerboard the 2 audio clips and then keyframe the level for each clip, but this is much faster.  My audio transition default duration is set to 1 second, I can change that to 2 frames (can't set it to 1 frame) and this is not the ideal solution.   And, I can't save this is a audio transition preset and although I can copy and paste it, it always starts at transition rather than being centered on the transition and can't seem to change this behavior either in the effects controls as it can only be dragged to start or end at the transition not centered on the transition.    What I do now, is apply my default audio transition centered on the edit and then doubleclick on the dissolve in the timeline and change the duration in the dialog to 1 frame...  Not ideal, but not a premiere deal breaker, but wondering if there's a better way.

thanks as always

Grenadier