Best Blu-ray subtitle settings in tsMuxeR?

[hbenthow]

For years, I've been using tsMuxeR to make simple Blu-rays without menus. I've been using the following settings for the subtitles:

Font: Arial
Font size: 65
Additional border: 5 pixels
Bottom offset: 155 (for letterboxed 2:35:1) or 110 (for 1:85 aspect ratio).

However, I've been wondering whether these settings are ideal. For example, is 110 pixels too high of a bottom offset for the 1:85 aspect ratio, is 65 an ideal font size (perhaps too big?), and is 5 pixels an ideal font border size? I'm very satisfied with a 155 pixel bottom offset for 2:35:1 movies, but I'm iffy about the rest of the settings. And I'm fairly satisfied with the Arial font, although it's possible that there are better ones.

What settings would you recommend?