I've been following the thread and watched a few Youtube vids on this Tinbum drop-in kit with a TX200. It all looks quite easy, straight forward and improves smoothness of the rifle's firing cycle and the shot.
If it works this well in a Pro Sport, as it seems from Si's post above, , I'm seriously tempted for one to fit mine.
6 power washers. Is that a normal thing? I need to get mine chronographed I think. She's hitting tight, sub-half inch groups at 35 metres now!
6 power washers is excessive and if it was mine id have it running at around 10.5 with 4!
the compression chamber was one jimmy gave me to replace the original one that had damaged buttons due to the cocking cycle being a bit rough, this was easily sorted by stripping the linkage and removing the sharp edges and greasing properly...
the second hand comp tube is a bit baggy in the last 1/4 and pre tbt kit was impossible to get it much above 10ftlb
if it was mine id be tempted to order a new comp tube, they only cost about £40 and fit a yellow ox spring, I've been looking at these and they sound like a good investment..
this is as easy to do as the youtube videos show.. and id highly recommend doing it, think the kit was £53 delivered and it was in the post the next working day
even if your not fitting one at the moment id give the linkage a quick fettle while you've got the stock off... it makes a massive difference, it went from gritty to silk