Can anyone share any suggestions/pointers on trapping while flying the spin solo?

One thing I had to figure out on my own is its necessary to install a rear block on my F18 for the spin sheet to run through near the base of the maisheet, in order to use the spin sheet for stability and balance. However, doing this increases the drag on the sheet making it hard to release as quickly as I want.

Do you use footstraps too?

How hard is it to maintain this position? I have been a bit leary of doing it much solo without other boats around. Are you able to keep trapping successfully in moderate to higher winds with the spin out? It seems like it would be hard to maintain without footstraps if you had to quickly bear off or dump the spin sheet to keep from flipping.