a silly question perhaps... but...can you use ultimate offering before your turn's one regular summon?
as an example in main phase 1 you special summon a cyberdragon then activate heavy storm/giant trunade ,ask for response,then chain ultimate offering(pay 500 lp)ask for response, resolve backwards summon (a gadget say,& pull from deck to hand) then wipe/ pick up both back rows... and then use your turn's summon to tribute for a monster say emes the infinity or ultimate tyranno what ever....
as an example in main phase 1 you special summon a cyberdragon then activate heavy storm/giant trunade ,ask for response,then chain ultimate offering(pay 500 lp)ask for response, resolve backwards summon (a gadget say,& pull from deck to hand) then wipe/ pick up both back rows... and then use your turn's summon to tribute for a monster say emes the infinity or ultimate tyranno what ever....