I'm glad the larger Para-Ordinance models work well. I suspected they would since the 1911 is otherwise a tried and true design. The PO sub-compact I owned did nothing but jam (a re-engineered design). The stovepipe jams were certainly due to the recoil snapping the pistol up. Holding it tightly would reduce this problem, but it's hard to hold tight on a short grip. The feed problems were all due to the steep angle of the ramp and that's engineering.
It doesn't surprise me that your single action is more accurrate and reduced fatigue. Single action is optimal under those circumstances. The Glock trigger is a compromise. It stays in the holster safely, and comes out of the holster ready to fire. Many consider a single action to be dangerous if stored in the holster cocked and with the safety off. The Glock style trigger also helps prevent accidental discharge in a tense situation. It's also a more "idiot proof" design. Less fumbling with hammers and safeties. IMHO, it's more useful for fast response situations, such as law enforcement, where ease of use, speed of deployment, and safe handling are primary concerns.
There is a trade off of course, which is a longer trigger pull and unusual trigger design. The longer pull reduces accuracy, although training can help compensate for that. The "double" trigger safety design puts extra stress on the crease of the fingertip, which can cause chafing and irritation in long practice shoots.
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