Frank Healy wrote:

http://www.lightnings.co.uk/ Adults Paddles Guidelines PDF

Sorry it did not help - it was published to assist the youngsters who
attended a coaching day at a regatta last year. One of the GB coaches
gave a talk to parents and when the website was set up earlier this
year the information was published for their benefit...

Frank, do you (or the kids) use bent shafts in competition?

What are your opinions about feather angle? Do competitors
decide for themselves? What is the most common choice?