Jeremy Sonnenfeld still has his own burden to bear and I haven't heard a lot about him since 2000.
I go to Western IL University were Sonnefeld (MR 900, First santioned 900 series EVER) led us to a national championship. He still has records all over the place were he just went crazy and this is college level sport shots. One of the records according to coach was at Sam's Town bowling alley in Vegas (were he still holds a record for having like a 266 average)
Not to mention to get the championship as anchor man he needed two strikes and a 9 count to win and with that much pressure he came through with just that.
Sonnefeld went on to work for a couple ball manufactures, ebonite being the first one that comes to mind.
I don't think he has much of a burden to bear. He set the bar (sactioned bar) and only a handful of people have been able to match it. By the way Sonnefeld is also up on the board at the bowling alley I have league at for having a 300.
I think he's made his mark and there really isn't much more fore him to prove. Going Pro for the most part is good for getting your name out there, well he already has his name out there.
Now what gets me is this kid does this and carries that much. The guy who has the record for most 300's (80+, probably 100+ by now has never shot 900) I find that interesting because he holds the record for having an 800 average the longest and most 300's and yet he can't carry enough to get 1 900 under his belt. (I think his name is Jeff Cotter or something like that) You shoot 300 that offten and cant put 3 together and this kid does it 3 times... Give ME a BREAK!!!