Thanks mate,
It is bizare!, I'll try again this evening.
Cheers
Aces
PS:
On another note, I managed to find some exact dimensions (and markings) for the water-filled Jerry cans, I had to make a "guestimate" last time so the new ones are "spot-diddly-on-the-money" scale-wise
whilst I play around with the new helmet, I replaced the one's on my 251 mod with the new ones as well as adding some new hook/brackets to hang them and the jerry cans on.
PPS. this is how I've orientated the new helmet: