Hard to compare, because what happens varies so much upon what is happening all around and within you.
So far my ALD-52 sessions have been slow paced and radiant, glowing things, and my ETH-LAD sessions have been more active and detailed frothy things.
Frothy is a perfect description of the first phase of an ETH-LAD trip. My last experience was 300ug eth-lad plus 125ug Ald52. It was a true white knuckle ride and they seemed to really potentiate one another. I've coped fine with 300ug eth-lad on its own, but even then it is fairly challenging.
I used to do a lot of flying for work, particularly between Chicago and New York. I'd describe the eth-lad experience at a higher dose thus:
You're on the runway at O'Hare. It is raining and there are storms nearby, but there is a brief window for take off. Eth-lad is given the all clear to push back and head for the runway.
Its a long way to the runway from the gate and you are gently propelled, sometimes forgetting you are moving at all as you slowly take in the changing scenery. Then the acceleration starts. You suddenly realise that you're actually more affected than you thought. The speed increases and you lift off. But, there is turbulence: the nearby storms make for a very bumpy ride as you approach the cloud base and you are jolted around, seeing only fog and the flashing lights from the wing tips.
You start questioning the rationale of the trip. Why am I tripping? What is going on? It's difficult to get comfortable and your head is totally engulfed by a fog as you fidget around unable to keep still.
Then, suddenly, you break free from the clouds and level off. A full moon lights up the cotton wool of the cloud tops but you can still see flashes of lightning around. However, you are above it all. Your eth-lad peak feels joyous and you settle down to enjoy the next few hours in first class, sipping high quality wine and listening to Elvira Madigan by Mozart.
That, to me, is what a higher dose of eth-lad feels like. Wonderfully challenging in the first phase and utterly blissful in the second phase. It's by far my favourite lysergamide (I've tried ald52, 1p-lsd, al-lad and Lsd) and I will be stocking up on it. Assuming that the evil customs do not grab my next order!