I say bad luck as well.
29.5 inch is a pretty long draw.I do shoot shorter bows sometimes and certain designs work better than others in a shorter bow.
In general with older vintage Bear recurves I like the 64 and 66 inch lengths best and I draw about 30 inches.They feel better,shoot sweeter and smoother for a longer draw and I dont think you put as much stress on the bows older limbs that may have some hidden issues.
A heavy arrow is always good with them and a well made B-50 or B-55 string
It may not hurt to unstring these older bows when not in use.Just be careful stringing and unstringing.
Any 64 inch or longer Kodiak is gonna fit you well.Super Kodiak,Kodiak Special(comes in 66" as well),57 Kodiak, or 65,66 Kodiak,59 Kodiak etc.