Thank you - useful. Perhaps they really didn't need to use that specific trick on that specific occasion. It might be interesting for someone to comb through and find out if they used it lots of times, or just a few. perhaps they simply got into the mindset and used it because they could, in anticipation of needing it.
Certainly that sort of thing is easier to do first time round, rather than having to go round again to find bytes when you find later that you need them. It becomes a habit, much like these days it's a habit to layout code clearly, name variables carefully, and comment tricky code.
A possibility and a fair one! I might write something to scan through looking for jumps that jump inside opcodes (added to list of projects which I will do one day).
Certainly that sort of thing is easier to do first time round, rather than having to go round again to find bytes when you find later that you need them. It becomes a habit, much like these days it's a habit to layout code clearly, name variables carefully, and comment tricky code.