Guys around here that Push cranks are usually going @ ~1.8mph ... using 2-3oz trolling weights ... 14' rods (capable of handling the weights & cranks). Some use 10-16' rods to separate their spread better. Cranks are on 5' leaders, usually 6# test mono.

I use 1oz weights @ 1mph to Push jigs .... 2oz weights to Push cranks @ 1.5mph

A long handled, rubber coated net is another "must have".

If you don't have a chart showing diving depth of 100-200-300 series cranks (like Bandit) ... the best thing is to have line counter reels & try and keep your lines at near a 45deg angle, then you can "estimate" the depth of the crank by multiplying the length of line out by 0.6 --- OR figure 3ft of depth for every 5ft of line out. I always err on the side of shallower, rather than deeper when estimating crank depth ,,, since I rarely have my lines at an actual 45deg angle.

I know that my jig will track about a foot below my 1oz weights at 1mph ... and a 300 series crank will likely track at ~2ft or more behind a 2oz weight. Since you are "supposed" to only count the length of line out from the surface to the weight, I allow that extra diving depth of the crank to compensate for the length of line between the rod tip & surface when I'm setting the length of line out to reach a specific depth.

Just my opinion & limited experience Pushing cranks ... others may have variations or use different setups.