Adkins Studio Mug Press - Which Element Size?

[UK Printed Mugs]

We've bought another Adkins Studio Mug Press to add to our ever growing collection but purely for 8oz bone china mugs. Xpres list a porcelain element for smaller mugs and a smug element for smaller mugs. Confused. Could someone shed some light on which would we need please? Regards, Olly.

[UK Printed Mugs]

UPDATED - We went for the small porcelain one (not smug). Apparently both are the same diameter but the smug is shorter in width. It wasn't a great fit for the 8oz bone china mugs in that we won't be able to get very close to the handle (unlike DF1+ press from BMS) but it is fine for our current requirements of small artwork on each side. It is more consistent in the Adkins press and was able to bring down temperature to 170c.