Record to audio track A without the release trails.
Record to a second track B with only release trails
Copy track B to track C and track D
Predelay track C 10 Ms to left, reduce the volume and also bass frequencies with EQ. Narrow the width of the stereo pan.
Predelay track D 20 MS to right, reduce the volume and also high frequencies with EQ. Enlarge the width of the stereo pan.
Merge the four tracks... are you gonna have something close to Platinum ?
It's an interesting idea but platinum is 24 bit with 3 mics positions, not just 3 samples starting at deferent times.., + the far mic position has a longer release trails(I think) that would have to be compensate for. But I'm shure you know all this...
They have a snare demos with the 3 mics positions of platinum that would help you make a comparison.