Great LBM or GBM is unequaled in my opinion, but is not easy to find & not readily attainable for most builders, so it's not really seen much. Most top tier builders use it when they want something other than ivory. Everybody else uses whatever they can get from the cuemaking suppliers like Atlas & Prathers. Mason actually goes a step beyond & has some stuff made specifically for him. Otherwise, i'd say only 2-3% of all cuemakers are using something other than what is available through the cuemaking suppliers. Therefore, the vast majority of custom cues are limited to what the suppliers offer.