This may or may not be of use to you shaun, i,ve had trouble with trigger freeze flinch etc for few years,started when i started shooting international qualifiers but whether this was anything to do with putting pressure on myself( mental block) or was due to increased shooting and recoil i don,t really know. i suspect it was mental as i was shooting thousands of pigeons and crows per year without any issue,s.
Anyway on one qualifier i had 16 freeze/flinches and was all set to give up shooting,so changed my gun to a heavier kreigoff k 80,started shooting 24grm shells and even went to someone who,s supposed to specalise in curing this sort of thing with hypnotisum and the result was it made no difference whatsoever.
I was experiencing 3 different types,trigger freeze where i,d get to the kill point and could,nt pull it,a flinch where i,d get a sudden surge in the left arm pushing the gun away,and another where i,d pull the trigger before the gun had acctually got to the target let alone in front of it. Anyway i noticed over time that it was mainley happening on slow moving targets where i would track it for a while before shooting it,i got over this by keeping gun out of shoulder and tracking it with my eyes mounting the gun and pulling trigger in one movement,this all but elliminated it on the slow targets but would still get an occasional one on a diferent target,but i could live with an odd one.Had not much trouble for a year or two.
However 6-8 weeks ago all went wrong again,my scores slumped and my flinch came back,was aware my scores were dropping off a bit and couldn,t understand why,but worse when i was missing i didn,t know where or why?? usually when i miss a target i know where i,ve missed it,but i was pulling the trigger thinking thats dead and watch it sail on by untouched,shot the world prelims at westfield,nice shoot not overly hard shot a 79, miissing targets and flinching ,shot red course at worlds next day shot 68,tougher course admittedly but i couldn,t even hit the easier stuff and was flinchinng badley.
Anyway sat at home saturday night the only thing i could put it down to was gun fit,i,ve had my DT 10 for 2 years now and shot some good scores with it,but in the last 4 months i,ve been on a diet and lost 4 stone in weight,so jacked my adjustable stock up sat night (about 5 mm) and shot the blue course on the sunday,only shot a 79,but at least when i missed i knew where i,d missed,not like the day before where i didn,t have a clue,and above all only had 1 flinch as opposed to 6 or 7 day before. ANyway following saturday i went to mid wales shooting ground where john the ground owner had a look at my gunfit and said it was still way too low,so lifted it up and moved it over a bit,tried it on pattern plate,bang on 60-40%.. shot a 23 and 24 on the skeet and shot the sporting really well. shot 3 sporting shoots since, had 2 flinches and shot a 91,89 and 86 and know exactly where i missed the one,s i missed,so my flinch was triggered this time by poor gunfit and head lifting off the stock looking for the target,might be worth having it checked out,i never thought it could possibly be this but it was!!