The one thing you will need to keep in mind. 'Sweet Afton' never mericloned well. One in 10 or 20 plants flowered well. It was then selfed which produced rubbish with one or two a bit better, ie. the one you posted being one of those. This in turn was mericloned & one in 50 plants were good enough to keep. I looked back at the discussion with BD & I think it says all on the subject for a proper 'Sweet Afton'