160 PSi Compression on a silk

[Titan500]

After doing a compression test on my rebuilt Silk Engine , this seems very high??

[gasman]

1st are they even between cylinders ? approx 10%
compression will vary on cylinder and piston and ring wear.
how much oil is in the rings after rebuild,
bore and distance piston travels from top of port to tdc,
The Silk isn't a short stroke rev free engine as per modern two strokes,
The main thing is are they even,