I purchased a Walther RM8 PCP last year as a treat to self. The thing weighs a ton, needs a tank and basically for me is not as much fun as an old springer. Possibly my age is kicking in but I have found (to my cost) that a self contained springer is much more useful for me and probably more fun.
I had no idea that one could tweak a Meteor trigger, polishing the working parts perhaps?
You can stone the trigger/sear engagement and carefully alter the engagement angle on the trigger to reduce sear lift.
You can make a trigger spring from thinner wire.
Sear engagement can be adjusted with the screw in the trigger.
All these combined can make for a quite good trigger.
Too many airguns!
I have not heard of using thinner wire to make the spring-that is clever! I usually like the BSA triggers and have never had an issue with them until I tried the new plastic trigger Gamo nonsense.... Metal triggers in Gamos can be replaced using a Welsh Willy trigger but the new ones are awful in comparison.