Greetings! Bolting faster after the Ratchet Box was added is surprisingly simple.
You need: a ) a fast finger to scroll (or an AHK script) b ) an arm (hand optional but recommended)
Step 1: Hover over bolt with according size
Step 2: wiggle between two points between bolt (or in case of multiple bolts, use bolts as points themselves, and wiggle between them) Representation x = point O = bolt [=====x=====O======x=====]
Step 3: Start scrolling to bolt in (or out), and keep wiggling between the bolt
And that is all.
Explanation and method etc: This works on the simple system of resetting the "between bolt" timer given to basic spanners. If done consistently (or using AHK) you may return to bolting faster (or close to) as in older versions of MSC.
Cheers! epsypolym