Post this in a thread in the machinery section. This is a blog. 
 

if you’re on foot pedals for both you will probably find you can be gentle enough on the controls that it’s not an issue. Otherwise a little inline restrictor is all you need. Barrel type are very neat inline on hose runs- although fiddly to adjust they only need doing once. Or on the male/male fittings between hoses and the couplings you can get them with a pinhole in the middle which you drill out until you are happy with flow.