Air Arms TX200 .177 custom spring ?

Is there a place that makes custom springs ? Thinking of a spring being made for a TX200 but a 9.6 FPE (apx.) ?
Thinking of a plug and play situation rather than cut and shim game .
(maybe too much coffee thinking ?)
Thanks
Contact Tony Leach. He is the best Tx guy there is. He does several neat things. 22 mm piston conversions and others. He is UK BUT Nitrocrusher here is his importer dealer.

Tony is alot like my self ..Extreemly busy and sometimes gruff as it’s tough answering constant questions and giving out advice. Go on FACEBOOK AND LOOK UP. LOST VOLUME. Its his personal TX SITE.
 
ok , great , thanks . I have two TX's maybe be better just to have a normal tune done @ 9 to 9.5 . i am just wondering what it would be like shooting a lighter FPE in a TX or HW97 /77 gun ? i read a lot of UK Field Target threads and it seems popular to shoot at lower than legal limit in UK . Whereas in the US a 12 FPE limit gun would be tuned @ 11.9 .
 
I just use the regular 12fpe Vortek spring kit and tune it with pellet weight. I am pretty new in this game but I am going to make a statement I believe in but it will make some unhappy. But here goes. Quit blaming the gun, the spring, the scope, the mounts, the weather, the grease, the shims, and learn how the gun wants to be shot. I am referencing bench shooting. These guns are very very touchy. They require absolute consistency. It's not easy, it's hard. You need to make it muscle memory. Chasing phantoms within the gun is not the answer. You can only do so much. It's the Indian not the Arrow 99 percent of the time. Pellet lots very. If the gun shoots until you buy your next lot of pellets then goes haywire, it doesn't like that lot of pellets. Try some other pellets of similar weight.Check the velocity to see if something is going on with the gun. But number one.....learn to shoot the gun.
 
The ARH soft spring with OEM guides has a good shot cycle. I think this spring is about 12fpe. If you don't use the steel top hat that might reduce the power slightly. A TbT delrin short stroke spacer is another option. The shot cycle is a little snappier but the air volume is reduced and this can lower velocity slightly.
I've tried different springs and found that going too low in power can increase lock time and affect accuracy. For me 12fpe allows for accuracy at 10-50 yards while not disturbing my sight picture much.