this will be short and sweet because its something tom asked me about.. cheers
i picked the droppin kit up this morning from the post office and have fitted it tonight!!
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this is my mates ps that was twangy and running at just over 10flb, id stripped it and polished it up before and it made a difference but i struggled like hell to get the power up as he wanted it more or less on the limit, i was going to order a vortek one off tony but they got sent to the wrong county so my mate wanted this!
i stripped it down and removed the piston seal to fit the short stroke.. heres the short extension
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i was a bit dubious at first with being able to see the tapping... but it went together fine and i borrowed some locktight from the bloke next door to set the grub screws!
when fitted the extension didn't quite sit flush with the piston so i fitted it to the drill and spun it out with fine paper till it was flush
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then moly'd the appropriate parts ready for sorting the spring..
the spring guide needed trimming to allow for the top hat build up and the large slip washer and small one came to a good size match for the original steel aa one
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then i put her back together and started the testing...
it was unbelievably smooth with no twang what so ever but only doing 8.4 so i added 2 of the power washers that pushed it to 9.02 still felt good but my mate wants it at the max.. so 4 took it to 10.2 which is what most lads would be happy with and its excellent at that power..
so if your happy at 10,2 that I'm sure will rise 4 washers is the magic number..
still not up there for my mate though so its got 6 in witch takes some cocking but brought the power right up to where i wanted it, a new stiffer spring would sort out the preload overdose but thats for another day if he wants it doing!!
so all back together and its rose from 10.7 with 50ish pellets through to 11.35 with aa-field and 11.87 with my highest power pellet the h&n barracuda
its way smoother even at the extreme end and no twang what so ever the recoil is still only slight I'm well happy with it and i bet he will be too, i altered the trigger to because it was just dangerous,first stage was so long and second there was no crossover/resistance at all
maybe not the best right up but is the tbt full drop in kit worth doing??? in my opinion yes
and if your happy with mid 10's then its an excellent investment!!
atb and cheers si