If by mushroom head you mean a mushroom shaped dick head when the head flairs out and is wider than the shaft? Then no I have given one of those dicks many blow jobs and I know it would have been much more enjoyable if there were not so much of a difference in diameter. I would rather a straight up dick than can slide in and without a speed bump.
I don't have one of those major mushroom heads, but for sure I have a significant lip that is larger than the shaft... as is the head. And you are exactly right. I have wished for years I had a "cock remote" where I could shrink my cock so it was easier for blow jobs. I am rather endowed down there, which is great for intercourse (including the lip which I have received a number of compliments on how it feels) but makes it very hard for gals to suck on without their jaws killing them.
My FWB likes starting a blowjob while I'm totally soft. She likes feeling it grow in width and length in her mouth and it gives her time to adjust to size. She loves the head too.
I think they all kind of look like a mushroom. Not sure I’ve seen a dickhead that I wouldn’t describe that way.
Mine is shaped like that, with a very well defined head. I’ve never thought to measure, but I’d guess the difference is around 1/4”. I’ve not had any complaints, but then again what girl would (to a guys face).
As far as I know it has to do with how pronounced the rim of the head is. A helmet heads rim is closer to the shaft while the mushroom rim is more pronounced. Keep in mind I am not an authority on cock heads...
I love my circumcised cock it’s a little over average length and girth and has a nice shaped head it’s like a mushroom I guess
I di have a pronounced head/rim, especially when I get really hard. I’ve received plenty of affirmation from my partners that it is enough for them
It might not be huge but I’m kinda attached to it and think it’s a nice cock if any of the ladies I’ve been with thought it was small never mentioned being unsatisfied by my cock either