Can you ID the difference in these dies?

There are two 454 Star lubrisizer dies on eBay. However, they look quite different. Can anyone here tell me why? I'm concerned I'll buy one that won't fit in my Star.

#1 http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT

#2 http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT

Thanks....

My guess is the location of the lube holes. On boolets with multiple lube grooves the holes have to match (more or less) the spacing of the grooves

one looks like the top bearing surface is longer.
all my star sizers fit both my two old ones and my newer one from magma.
all the sizers iv'e bought fit them all also.

Phelps is(was?) an after market supplier of Star sizer parts...may have made some custom dies also.

I wouldn't be too concerned about the difference in the location of the lube holes. You'll probably have to plug some of them anyway.

Jerry