Sabotloader - have you done any range tests on accuracy after prepping the gun the way you do .....after lightly oiling the bore? As you know I'm a Pyrodex shooter and am very concerned about leaving a fouled bore for any length of time. I don't mind leaving the gun loaded on a clean bore. I may try pouring various ingredients from baby powder to oatmeal down the clean barrel before taking the first shot the next few times out. Seems something like that might adhere to oil residue and achieve a similar effect, without the corrosive qualities. Maybe I'll go to 777 when I use up the couple pounds of Pyro I have now.
roundball shooters seem more incline to shoot on a clean barrel into the same group then the inline and sabot loads.
Cayugad - maybe a RB patch is a more physical seal where sabots rely almost entirely on gas to seal?