My 10 rep max for weighted bodyweight dips is approx. 240 lbs (my bodyweight 180 lbs + 60 lbs extra plates). I can usually do 3 sets of 10 that is to failure.
With your input on this then I should use the same exact poundage as above but stop at 5 reps instead of 10 so as not to reach muscle failure, will that do?