Rubber eyecups - help me out here please.

I can't stand them. They press into my eye socket in weird places and I have to put pressure into for my eye to seat leading to an unnatural and uncomfortable hold. But, I see many people using them and seeming very natural.

Please help me out here so I can understand if I'm not setting them up properly, not seating my eye right, etc. 

I just got a Pard 008 and the rubber eyecup is throughly annoying me.
 
Some of us are a bit more OCD than others. I just got my Immersive 10X40 scope and it has a rubber eye cap as well. I used it the first time I went out with it. The second time out it annoyed me one to many times so I removed it. Things are much better with it gone for the most part. It's just used as a lens cap now. That nasty OCD syndrome is a bothersome thing at times. ;^)
 
You might have to try dufferent models. Years back I went with a Bisly eye cup, it was comfortable but did take some getting used to. There are some different shapes and degrees of softness for ones own comfort level. They do help in bright sunny conditions, questionable in low light conditions. You will need to re learn getting your head in the right position behind your scope. Experimenting is what it will take!!
 
Eliminate points of contact with your rifle for best accuracy, so don't use a cup. This advice comes from Ron Carlson World Champ in Field Target.

I did not have that issue with my adjustable cheek TX200....now I could see that issue on some rifle stocks.. The eye piece should not change your contact points or something is wrong. I was taught to close your eyes and shoulder your rifle, if your eye lines up your good, but if it doesnt, then make adjustments until you eye lines up everytime. Mine did with the eyecup on or off.
 
The scope height? If it not right = you anchoring different and the rubber eye shield not a fit to your face muscles/skin. Yes you can try different style eye cups but you still didn't eliminated the source of problem. Because you prefer to have in example a low mounted scope...that doesn't mean it fits your natural posture and your head is now leaning into a field of view...

just a 2c from me
 
I have one of the corrugated style with the side shade. It actually works very well after I trimmed it to fit.

Using a small Dremel sanding drum, I was able to contour the eyepiece down to fit my forehead and cheek very well. It's a little messy so wear a face mask while trimming as the rubber becomes a fine dust while trimming. 

I also use it on a scope that has a tight lens adjuster, some of my other scopes are too loose and won't hold in place with the added weight of the eyepiece. It's surprising how much to the side the shade needs to be, mine is almost turned upside down as a matter of fact, much lower than one might think.

mike