I am wondering what to do to improve one of my Webley Mk3s to make it more comparable with those that followed it in the '80s. I began with a Mk3, to all intents and purposes, so am rather attached to it in a sentimental way, but it is somewhat temperamental and, in my case, a little 'twangy' too. It performs at about 10.3 ft/lbs using S.domes and old Eley Wasps, so long as the washer is well lubricated.

I have discovered the existence of 'Tinbum' kits. Given I am hopeless at technical matters, I have it in mind to visit my local airgunsmith and ask him to fit this. Would it assist? Is there a better alternative? Would it result in better consistency and less of a 'twangy' sound? Would the accuracy improve?

Furthermore, should the leather washer be replaced with a synthetic equivalent or would this create difficulty?

Advice from fellow members of this site would be much appreciated.

Many thanks.