Seems to have vanished
Weird. Perhaps it didn't belong in the section I put it??
Anyway, to report back 2 days after doing my innovative self repair.
(not going to mention what it was in this thread as that might have been why whoever deleted it got the hump? as they don't see it as a valid repair?! 
).
Anyway - for those that are/were interested, 2 days later now, the tyre has only lost 1psi (was losing ~20psi/day with the original slow puncture), and to be honest, I think the 1psi could prolly down to temperature and gauge variance as I have done ‘spit tests’ and not a single bubble, so I don’t think it is losing anything!!
I have done the spit test before and after riding, so cold and hot testing, not a single bubble!
I have also speed tested it now and it held 110 fine (for legal reasons I’ll say 110KMH
).
As I said when I started this, I’ll keep a close eye on pressure/spit tests, but at day 2 I can’t see any negative/worrying signs to make me re-think!!
Oh and I intend to keep the tyre at ~38psi to minimise tyre deformation when in use