I don't think the silicone hoses have quite as much stretch...
Based on others' comments mind - I haven't fitted a set to anything, just the odd one here and there...
I fitted a custom made set to my 4/4 a couple of years ago. My first thought was to use Samco ( not least because the factory is quite near me) but Paul, one of their development engineers made the point that they didn't do a bespoke kit for my car and I wasn't keen on too many joins. I also tried Viper Performance but found them bit pricey. I eventually went to Paul Roose ( I think JtL has a set of his) and they've been excellent.
I have had no trouble at all with leaks but I did take one piece of advice ( from the guys at Samco in fact) which was to use the very best jubilee clips I could and don't re-use any that had been on there before After a fair bit of research, I went for JCS Hi-Torque stainless. In the past, I've also used Mikalor and found them OK
HTH
G
