In criminal justice, there's this whole field of research that shows that if you make committing crime more difficult - even by a little bit - through smart design or personnel utilization, crime problems will decrease. I believe this could easily transfer to eliminating the two most common and impactful in-the-cage issues - eye pokes and cage grabs. We've seen time and time again how problematic a well-timed eye poke can be, and stopping an opponent's takedown through grabbing the cage is just as bad. To make matters worse, referees are hesitant to take points away and give warning after warning (e.g. Herb Dean) for blatant cheating. Now I'm not saying that everyone who grabs cage or eyepokes does it on purpose, but with simply smarter equipment design - such as closed gloves that still allow you to use your fingers and hands for submissions and using some type of slat-based cage - could completely eliminate common fouls by simply making them impossible to do. You won't change behavior by giving out inconsistent penalties and warnings. At this point I honestly don't understand why at least gloves haven't been changed. I don't know how many more red eyes and blatant examples of corneal flicks we have to see to do something so simple that would improve fight outcomes and fighter's health.