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In the final stages of the Gryps conflict, RGM-79Q “GM Quel” units were often deployed in favor of their more costly RX-121 “Hazel”-type counterparts. Using “Primrose” and “Hrududu” equipment in exotic configurations proved to dramatically increase the speed, firepower, and range of these Titans Test Team commandos. The augmentations added to these custom mobile suits succeeded in vastly improving mission success rate and pilot survivability.
However, due to stability issues in high-speed flight, the thrust output of the standard GM Quel’s leg boosters were deemed inadequate to balance angle-of-attack vectoring. Therefore, some of these special units were modified to have their lower torsos, legs, and feet replaced with the high-mobility type based on the design of the RX-121-2A Gundam TR1 Advanced Hazel. This alteration applied a drastic improvement in maneuverability, allowing pilots to perform precise attacks with a variety of ranged and melee weapons. The inclusion of the Advanced Hazel's Sub-arm Units also proved to be essential for improved equipment handling and field maintenance. Additionally, when equipped with the point-defense laser suite found in the Enhanced Shield Booster, as well as the I-field Generator provided by a Composite Shield Booster, these units were very well-defended against missiles and beam weaponry, as long as such ordnance was available.
After rigorous combat testing, further configurations were developed, resulting in this variant featuring an extended gimbal arm for the Primrose unit's particle cannon and more mounting hardpoints for attaching extra shields and shield boosters.
