I own the AR6's in 181 and I skied on the El Reys in 178 for 2 days.
The El Reys feel lighter and more nimble than the AR6 due to cap construction and do carve pretty tight, but I can definitely say that they feel less bombproof and less solid than the AR6s.
The El Reys feel exactly what they are meant for: an all-mountain ski that carves and feels like a regular carving ski, but still very light and very poppy for jumps. It reminded me of the Foils, very similar feel.
I just prefer the the more confidence-feel of the sandwich construction of the AR6.
yeah when i was getting my il moros i went over and were looking at skis and i picked up the el ray which did feel lighter than the ar6 but other than that i dont know... if i remember right hand flexing they were about the same but hand flexing doesnt mean anything so im not sure.
"Same ski except for cosmetics to my knowledge. Super fun ski. Like a mullet, business in the front, party in the back." -Joshbryant