The 46m trigger is very nice as supplied, and is easily adjustable for a variety of preferences. I didn't like the blade, so replaced it with a wider one, which I made at a stronger cant so that it met my finger perpendicularly. Also made a custom grip from scratch as modifying the stock grip to fit my hand properly would have meant almost doubling its size with putty, resulting in something rather ugly. I also increased the cant by several degrees to improve wrist lock-up as the stock angle is rather too upright for a repeatable hold. Here's a visual comparison between a stock 46m and mine post-modifications:

The weight was indeed a problem for me. My forearm suffered after shooting more than 150 shots in succession. For short sessions it actually helped in steadying the pistol, but the fatigue was too significant so I machined the cylinder wall thinner, removed half the front sight block weight, removed the self-cocking assist mechanism, shortened the cocking arm, and made a handful of less obvious changes/reductions to bring the total weight down to about 1052grams, just 57grams heavier than the Pardini K12 with a similar custom made maple grip which I moved to much later.
There is nothing to complain about with the 46m's sights, as far as I'm concerned. The thing came with fore and aft blade options, which were easy enough to swap out and determine which combination worked better for my eye.