The only repartitioning device I am aware of is strategic carb depletion such as that in UD2.0.
As far as I have read, supplements/drugs like Bromo, ALA, and vinegar work irregardless of tissue muscle:fat, they don't repartition the disposal of glucose, they send and take away as established by genetics. Now by depleting and carb loading an individual may be divert nutrients away from fat due to muscle tissue needing, but that depends on many factors (best laid out in UD2.0). Now we are getting into "why can't we, over the long-term, burn fat and put on muscle". I advice anyone who doesn't understand the issues spend a few bucks and pick up UD2.0.
Long-chain fish oils more specifically EPA and DHA do repartition once it gets in the system for extended period of time thus changing the makeup of cell tissue. The ratio of 3:6 is more important than absolute values. FWIW, I have been taking 6g of EPA/DHA for several years and have not noticed an ability to stay leaner, so if does work, it has a muted effect.
Everything mentioned heretofore is my interpretation from reading comments by Lyle, Elzi, Barry Sears and a discussion with Lonnie Lowery.
As far supplements to repartition. Hypothetically if such supplements existed they most likely will by controlled by big pharma due to their propensity to invest in R&D and recruit the top minds in the field. An example of a drug that does repartition is testosterone, controlled by pharmaceutical companies or illegally produced or imported. If said supplement did exist out of an independent lab a firm with market power has divisions full marketing and finance types that recognize the present value of such investment and will throw so much cash at that company there is no way it will hit the market under title other than Abbott, Lilly, J&J, Merck, etc. Then again my world view may be little tainted due to the fact that my training is in the field economics/finance, and we think to much about market forces.
I would love to discuss this issue further.