A dark, economical, disposable glove that provides unique advantages over, other, more traditional, disposable gloves. Some methods utilize a plasma-enhanced chemical vapor deposition process to produce a coating with a desired coating profile on a wear part. The method accesses the query plan and a set of stored intermediate statistics for records verified by query components, such as histograms that summarize the cardinality of the records that verify the query component. The rotary disk has a plurality of press-formed rectangular dimples at a surface opposite the stationary disk, and each side of each the rectangular dimple inclines to a direction of rolling of the raw material of the rotary disk. This extractor is relatively low in cost, using items commonly possessed by club fitters to reduce the number of additional parts required.