driftworks geomaster 2 knuckles

any good on street car with occasional track use? read that it sharpens steering response making high speed driving unstable but drifting more precise. getting coilovers in november n wana slam the car but dont wana put stress on suspension components hence the interest in the knuckles / hubs which correct roll center issues. please share some thoughts on the product or if there is something similar on the market