I have a sink tip line in a 6 weight that I use occasionally for lakes. It sits around on an old Okuma SLV. For Penns, Pine, or Little J, I would NOT recommend a sink tip line to fish streamers. Sure, others will disagree, but I have done a lot streamer fishing, and those streams aren't very deep in all that many places. Depending on the type of streamer being fished, you can fish up to 8 feet deep or so with the right leader, and that is plenty deep for 99% of all situations on those streams.