I haven't tried it yet, but I think I'm a believer in same length irons.
For me, I would probably keep my 7, 8, 9 and wedges the same as they are now (normal length), but make my 4, 5 and 6 irons equal to my 7 iron. I've gotten so good at hitting my higher loft irons that I wouldn't want to mess with them, but with my 4,5,6, I struggle with the setup, the address and striking the ball clean like I do my 7.
Yesterday, I took my 13 year old out (he's about a year into the game, and just started breaking 100 from the whites, about 6,500 yards). We paired up with the junior club champ (he's 17 years old, and a +1 handicap) and his father (who is a bad 18 handicap). My son stuck a 4 hybrid to 1 foot below the hole on the par 3 that was playing about 175-180, and made his first ever birdie at our course from the white tees. He was sooooo excited. I was so exhausted (it was my 33rd hole of the day yesterday), but I got him on video making the putt.
That shit is what the sport is all about. Just a great moment to share with my son.