TPr9258.... after looking at your profile I doubt you'd have any problems doing most things in life! Wow... thank you for your past service as a veteran and as a nurse!
Jump on in...the very worst that could happen is you admit a block is too difficult and ask for suggestions or ask the sender if they wish to have a different block or mail their's back with a big mea cupla ... no harm no fouls.
At least that's how I'm looking at it and I don't do hard blocks by any means
