Seemed to work OK, decided not to push it at the end and just do this for a couple of days to gain confidence. The more confident I'm feeling the more I'll feel able to get into a nice Viparita Chakrasana and lower more slowly and with more control. I'm assuming that Viparita Chakrasana to UD is the tick and flipping back over again is the tock. The tock looks like being the tricky one but think this approach shoud work for that too. Think I'm going to have to rearrange my "shala" though to give me more space.
About time I did this drop from handstand to backbend. Forgetting about the whole tick tock project for a moment this should make me confident about bringing my handstands off the wall as well as my headstands, been dependent too long.
A big hello to the person who searched for "grimmly jump back guy" from Osaka (my old home town) today.