many thanks for the advice.
i remember the hebo helmets being one size smaller than they stated because their padding was a bit excessive. and that in turn made the helmet look massive on your head as neilh mentions.
ive had a few helmets myself in my years riding but most manufactures have dissapered. MPA, CTS, boeri to name a few.
more recently its been a couple of NZI carbons and now its a NAU which is a great helmet but the cheek pads have come a bit loose.
my friend still isnt sure if he'll fully get back into trials yet so he's reluctant to spend alot if its only used a few times.