its says work 29 row inc 1 st at shoulder edge only as before in 1st and every follow 4th row.
so do i know just keep repeating the last 2 row (inc in 1st st. knit to last 4, p4 / then k4 purl to end.
or do i keep repeating the last 6 rows until i've knitted 29 rows in total and inc every 1st row and then every 4th following row????
When it refers to 'inc 1 st at shoulder edge only as before', it's referring to the increase sts you did back on row 3 (3rd Row. inc in 1st st 1 time, knit to end).
So on this new 3rd row you do the inc at beg of the row, then work 3 more rows (purl, knit, purl) and on the 4th row, increase again.