Generally though for anything that uses JFET's it is probably best to go SMD these days anyway, they're far more readily available than through hole and much more consistantly in spec as well. Even if you can find through hole, you'd be lucky to find even a tiny percentage of them are even remotely in spec.
Glad to hear that they're consistant. So far the only fakes I've ended up are MN3007's but that was down to taking a calculated risk on a seller that I'd never dealt with before that didn't work out. As you say though, shouldn't have any problems buying from the likes of Mouser and similar legit sellers
When I first started at this I rather naively bought some through hole 5457 and J201 from what I hoped was a trustworthy seller, and even though they were all useable, they were pretty much at the extremes of spec. So since then, from advice on here, the ever increasing price and the lack of constancy that most people have reported for through hole JFET's that were available, I've only bought SMD versions and only from known trustworthy sellers, and found them to be very consistant and reasonable value for money, even if they are rather fiddly little buggers to deal with! Good to have the extra choice back though