Seems like lots of people have difficulty keeping the head semi exposed without it eventually rolling back into a hoodie.
I semi-circ, and the way I do it I can choose if I want quarter head, half head, three quarters head or even full head exposed all day and it never ever rolls back. And feels brilliant swinging around in boxers. It stays the way I want it until I unravel it when I want to.
Two people on this site already messaged me and asked me how to do it, so this is the reply I sent them:
Like any written instruction manual, a simple operation seems complicated if you describe it in words. But it takes a split second once you've been doing it ages.
Put the forefinger and the middle finger on the underside of the head. With the forefinger and the middle finger press the foreskin downwards as far as you can until it hurts. When it's down as far as it can go, keep it in place down there by pressing hard with the forefinger and the middle finger (which by now should be around halfway down the cock) and on the topside keep it in place down there with your right-hand thumb by pulling down as much skin on the topside as possible by preesing hard with your thumb. So by now you should have your foreskin right down as far as it goes and held in place with the thumb at the top and the forefinger and the middle finger at the bottom. You'll probably find that you're also using your fourth right hand finger to help keep it in place too.
Whilst all your fingers and thumb are still pressing hard to keep everything rolled down in place, put the index finger of your left hand on the underside of the shaft just below the head. With all right-hand fingers and thumb keeping everything rolled down in place, with the left hand thumb find the lowest part of the topside of the shaft where the skin stopped rolling down. Press down on it with the left thumb and keping everything in place, allowing nothing to move, push down hard and at the same time move the thumb a millimetre at a time upwards towards the head. Your left-hand index finger should also be helping the right-hand fingers by also not allowing anything to move (until it absolutely has to give way to a bit of skin).
You should find that the skin rolls in on itself . When it's started rolling in on itself, release a tiny bit of pressure from the right hand fingers and thumb which are holding the foreskin down, whilst continuing the slight upward movement with the left thumb. This releases a small bit of skin and allows the skin to slowly roll in on itself.
With the left thumb keep pressing down whilst slowly pushing upwards millimetre by millimetre to roll more and more skin.
When you're finished the head should be part exposed.
You might not get it right first time but you'll get the hang of it eventually.
Once you've done it loads of times you'll be able to do it in seconds and you'll eventually work out for yourself that it can actually be done rapidly with just one hand.
Seems hellishly complicated in written words but it's actually so quick and easy. And feels brilliant, especially in boxers or in bed.