f you are deadside why not just join crosswind, turn down wind base and land ? which isn't far off what you would do from that direction in an OH join.
Did you read this?
https://assets.digital.cabinet-offic...IICI_11-12.pdf
That crosswind join ended as badly as it ever could for one pilot.
I actually just don't agree that the 90deg turns in an OH join are a collision risk. Firstly the act of turning 90deg is very simple from a piloting perspective and secondly at no 90deg turn should I encounter any traffic I shouldn't have already seen.
I mean what traffic are we expecting a conflict with at any point? Perhaps the very first turn having joined overhead - but really with even the minimal of RT and use of the Mark 1 eyeball its not that hard to see and avoid is it?
I might be oblivious but when was the last mid air collision in the OH?
Don't get me wrong I am fairly confident you are a more experienced aviator than I but I think my points are fair enough