I see in other posts advice on adjusting is to pull slowly and adjust controller so brakes lock then back off. I am wondering if there is a problem with my brakes or controller because I am unable to get any wheel to lock even on dirt, set on heavy electric and turned all the way up to 10. Seems like my trailer brakes are weak even on a small when fully applied brakes will not hold trailer and rig. Is this advice for smaller trailers or does it also apply for my 15k cyclone?