Sometimes the bet size options seem way to limited. When SPR is deep it seems strange to me that the bet size is max 50% pot or AI 442% there should be bet sizes in between.
To illustrate a situation look at https://app.gtowizard.com/solutions?solution_type=gwiz&gmfs_solution_tab=ai_sols&gametype=MTTGeneral&depth=80.125&gmfft_sort_key=0&gmfft_sort_order=desc&preflop_actions=F-F-R2.3-F-C-F-F-F&history_spot=11&board=QsTh5dJs&flop_actions=X-R4.7-C&dialogs=
Solved in GTO+ with bigger donk sizes the bigger size will be used
Same is true when CO uses a small size which even makes the SPR bigger