I don't know about other self proclaimed m14 "riflesmiths" but i have been succesfully performing civillian match trigger jobs to bone stock norinco and poly trigger groups for about a year now. It was only after much hesitation that i began accepting trigger jobs as I used to also buy into the "chinese parts are soft" idea..... not ay more

Yes, some have dimension issues and require replacement parts but the sheer volume of the chinese parts going across my bench, I am not buying into the "soft" chinese trigger parts anymore. The odd one for sure has issues, but for the most part, and especially on the newer specimens, soft metal sears and hammers are a thing of the past. incorrect sear dimension rears it's ugly head here and there in that the left hand side sear is not cut 90 degres to the trigger. the critical surface for hardness is the underside of the sear so these angles can be corrected to a degree as the adjustment is done on the upper sear angle..... a non critical surface for maintaining specific hardness qualities....... to a point.... there are of course limits here.
BUT, the growing number of extremely happy clients who's BONE STOCK trigger groups have had my trigger job procedure applied..... have been providing me with a growing list of exceptional feedback...... and none have come back to me complaining of problems.
I average about 5 civillian match trigger jobs a week.
If you want it done right, the first time, and aren't so gullible to fall for the the "you must replace with garand or G.I. parts" mantra, shoot me an email.
my civillian match, 5 lbs 2 stage trigger jobs are only 75.00 plus shipping, and I personally guarantee every single one I do
as for stocks and fitting..... it's in the stickies on how to relieve the stock. My advice is to gently remove material from the rear bearing pad area first, before messing with the stock forward trigger pads. VERY rarely do we want to alter the stocks receiver bearing surfaces on the top.....
there is a specific measurement for the distance from the stocks rear heel bearing point at top rear of stock, to the rear trigger bearing pads.
In my shop, this dimension is checked prior to any alteration of stock or receiver/trigger bearing points.
so what does a guy do when this dimension is checked and it is within tolerance, and the receiver is firmly and fully seated into the stock...... yet the trigger function is still a fail? We DO NOT want to reduce these dimensions under tolerance, mag fit issues and other problems can arise.
the correct procedure is to remove material from the actual trigger group bearing points.... of the trigger housing. This is tricky and not for the inexperienced. Incidentally, 9 of the 13 sage builds i've put together since they landed in canada several months ago, the solution was to correct the bearing points of the trigger groups over jigging up and milling a few thou off of my customer's 1000.00 sage stocks. I've got 5 more here to get done before mid december so we'll see how many more require this trigger housing modification.