could t tech be the cause for back springs snapping?

[mattstopps]

thanks for your help guys, I'm not totally sure on gauges of the springs I've been using. however they are the stock tattoome springs that came with the machines, and i replaced them with the same stock springs which came as spares.
i spoke to a machine builder yesterday and we spoke about the problem, he mentioned he'd heard numerous times that the coils i use are too powerful and have a lot of tension, the back springs snap easily.
so given the fact I'm using carts gives good reason to why the springs are breaking so often.
i emailed the coil builder and they said they have heard a few people have had the same problem and that the machines need adjustments , some fine tuning, and (in my case id imagine i need to try 20 and 20 springs to compensate for the carts.)
the builder said he could take a look for me in sept when he's in the uk and sort them for me, and they will send me new springs once in stock. although these will snap again I'm sure if I'm using carts.
if someone could recommend some good springs that would be great and ill try fix it myself for the time being.
Skinmech thanks for your offer i may take you up on that as the back spring is far shorter than any of my spares and i don't have the tools or manliness to cut metal myself.ha
the positive side to this is that whilst my coils are out of action, i have no choice but to learn to line with my rotary. i had the bearing repaired by iain at rotary works on a springer mk2 and have not been able to use it until now.so I'm looking forward to giving that a go.
so ill put the time in to learn to line with that.
thanks