is measure spacing off in 2.8.1?

[Kieren Richard MacMillan]

Hello, all --

I've been using 2.8.1 for a while now, and it really seems to me that  
the spacing of measures is non-optimal.

In particular, padding before "extras" on the first note of any  
measure seems way off. Recently, I've posted about this issue  
regarding accidentals. Here is a screenshot of an arpeggio (in its  
default position) which clearly does not have enough room to breathe:

Once again, if there is a global setting I can use to give such  
measures -- which is nearly every one in my score(s) -- a little more  
padding around the BarLine, I'd appreciate being directed to it. [The  
best I got by RTM is BarLine.space-alist, and my trial-and-error  
experiments with that have been frustrating at best...]

Thanks,
Kieren.