Technical Spark Plug Wire Terminals

I recently came into possession of some bulk 7mm spark plug wire, a few boots, and a selection of terminals, which one of each are displayed here. Anybody have info on these, like which ones are your favorites, and why. The two in the lower right have me kind of stumped, as I've never seen this type before.

 

Bottom right look like Rajah right angle - cage.

 

top center is normal straight into a distributor cap.

top three on the left column are the kind you throw away, they're a bad design.

Top three on the right column are for typical right angle plug boots, quality varies among the designs.

bottom center is for cap with 90 degree boots.

at least that's what I can figure out.

 

Forth one down in the right column looks like it would give the lowest possible height (with the correct right angle boot) where space is tight, like the rear plug and steering box on my car.

 

The bottom right one looks just like the ones on the ignition circuit of my 1950s oil furnace.

 

Yep, before racers and rodders got hold of them the intended Rajah use was oil furnaces

 

Been running the Rajah’s for decades on my flatheads.
Never have had any problems with them. Corrosion has never been an issue. They look cool too.

 

I had a pair on my Sportster back in the day. My leg and sack would have preferred the old straights vs the 90s. Yeah, I bumped em a time or 3...