SF4 Design
The SF4 and SF5 are singlecut basses built by combining the SF2 bass side and the SF3 and SF1 treble sides respectively. I was looking to tie the SF2 into the rest of my line. Creating some trendy designs by combining my other models was a simple way to connect things.

The SF4 has gone through a few different design changes although only the 1st Progression is displayed here. The next 2nd Progression is stretched and smoothed out to flow better than the first version. After making this updates I went back and updated the SF2 as well.

The SF5 is much like the SF1 in that I have never been 100% happy with it. For one it contains the same awkwardness as the SF1. But unlike the SF1 which is a somewhat distinctive design there are many, many singlecut designs that look similar to the SF5. I haven't taken the time to refine or work on this bass any further.