ounce range.
doubled it might be good enough for a 3m ship where you want something between 12 and 18 pounds pull.
but yours was 4.4m. i would imagine that that plane was on the order of 6 pounds. for that i would want 24-30 pounds of pull on the hi-start. i have a 1/2" rubber hi-start that would probably be good enough for that one, but i have a heck of a time pulling it back that far by myself and handling a 174" plane. for a really good launch of a 4.4m ship, that would be what i would expect to use in terms of a hi-start.
but, again, as long 