Hi guys,I have an FWB 124 Sport (San Rafael).I acquired it after the passing of a very close friend of mine.We each bought one new at the time but I later sold mine after getting bit by the precharged bug a number of years ago.Living in the city we did not get the opportunity to shoot much so as a result the gun has had maybe 600-700 pellets through it as evidenced by its basically mint condition.It has been sitting in a gun safe all of these years.My question is this.It needs a new piston seal.Should I replace the seal only or the put in the entire kit with a new spring? Knowing the low shot count will the original spring still perform? Will installing a different spring affect the inherent value of the rifle in a positive or negative way?What about shootability and accuracy with the original vs a different spring? Thank you for your thoughts on this, Jay