I can help you with that question. To begin with they are fairly similar to a beginner in the disso world so you wouldnt notice too much different between the 2 if you are not experienced.O PCE ime is more stimulating but also more manic where as 3 HO PCP is a smother more relaxed high. 3 HO PCP last about an hour longer than O PCE but is slightly more painful when insluflated.Both provide strong dissociation with little lose of motor control, compared to say ketamine. 3 HO PCP is slightly more potent so be careful when dosing, that said if you take too much i find it to be more forgiving than O PCE. O PCE is easier to hole on where as i have only ever holed once on 3 HO PCP and that whas then combo'd with 3 MeO PCE.Start with 8mg HO PCE and 10mg O PCE for a medium to strong experience. Safe tripping bro!