Brookfield went out of business several years ago but Sadlak Industries is making a "Brookfield" style mount. Sadlak has made some significant improvements in the mount that will probably fix your problem. If it is a Sadlak mount, talk to them and they will solve your problem. They are really good folks to do business with.
I honestly believe the Sadlak titanium mount is the finest one ever made although it is pricey.
How come it is always too something... Too hot, too cold, too soon, too late, too much, too little, too deep, too shallow, but always "too" something.