Looks good, Ryan.

Take this with a grain of salt since I haven't personally run tests and comparisons, but my impression about porting and polishing is that in most cases it seems to be positive, but there are cases where it can make things worse; ie, reduce power. The fluid velocity at certain points in the head can be adversely effected by porting since larger flow area and same inlet flow results in lower fluid velocity. Scavenging is also effected by fluid velocity. I'll shut up now since I don't know much more than that.