Dan, After seeing the SE UIM and SVT UIM side-by-side, there was no question (in my mind) that sending the SVT one was the way to go.
The TB opening is much smaller and the smaller ports are considerably smaller. Anyone without the ability or mechanical inclination would have a tough time port matching.
The design of the SE vs SVT is slightly different, too. So I don't know how (if at all) it would affect peformance.
