People i know have compared it to METH-LAD and ALD-52 and some more..
It was indeed a delay until peak effect and a much smoother (longer) onset. This alone can make 1P-LAD feel more together sense your more eased into it!
Made liquid and was tested and in the following (Measured with lab pipette.) 100ug 1P-METH-LAD, 100UG, 100ug ETH-LAD, 100ug 1P-ETH-LAD, 100ug ALD-52
Both 1P versions reported to have a longer and smoother onset than without 1P added.
Regarding the 1P-ETH-LAD it felt more smoother and happier even when set and settings with pursues was made worse!
ETH lad can turn on you and go from happy and clean to somewhat dark and with some degree of anxiety! 1P-ETH-LAD was harder to turn darker and more twisted. And anxiety was also harder to fined with the 1P version.
Regarding telling them apart:
ETH-LAD and 1p-ETH-LAD has a fairly own vibe to it separating it from METH versions (both) blind tests has bin conducted and from the reports the test panel (witch all are fairly familiar with these compounds!!) could with ease tell 1P and ETH-LAD apart from etch other (Mostly on the tweaking with set and settings)
Regarding ALD-52 it could be taken for with METH but the percent was not more the 1 in a 10 people test panel. And as for 1P-LSD it was 0%.
(This is from experienced researchers)
Going to purity all was from needlepoint 98+%
In a discussion tho among the test panel it was concluded that inexperienced people and on more non research pleases like festivals and so on it whould be hard to tell 1p from non 1p's and also ald-52