As long as you got your Mini to run right in the syn stock, you are doing all right. You have a functional firearm, which is always the goal. Prefer syn stocks myself, but YMMV.UPDATE:
I put the gun back in the original synthetic stock (i had put it in factory wood) and the issue went away.
Im thinking the fit wasn't correct on the wood stock and it wasn't latching correctly. Why this only manifested with 2 buffers installed is beyond me. Rifle currently has wilson 1911 buffers front and rear...smooth and silk and working perfectly.
If you wish to do so, it's always possible to mod the wooden stock so that it no longer drops the trigger group. Perhaps contact Ruger with your problem and see what they say before making alterations to wooden stock. AFAIK, Ruger Mini wooden stocks are not known for precise fit, and that can be problematic.
FWIW, I've fitted and bedded a number of M1, M1A, and Mini-14 stocks, both wooden, laminate, and composite. The syn stocks available for all these rifles were almost always better stocks, out of the box, as far as accuracy was concerned, even before bedding.
I keep my pretty OEM wooden Mini stock in a box. I shoot my Mini with a paintable, virtually indestructible, accuracy-enhancing syn stock. YMMV.