why a custom built converter isn't for everyone....

The only time it would be practical to not have a custom convertor would be for walletary reasons.
In other words, financial reasons dictate a given build is OK to sacrifice performance.
Say you are buying shoes and wear an 11.5. Shoes only come in 11 and 12.Half sizes cost extra. Would you pay the extra for the extra comfort every day you have the shoes on?
Clip your toe nails short and by the 11's. :D Well, I appreciate the analogy, but physical pain isn't quite the same as 2 tenths. My opening post suggest that with the changes I'll be making to Drag TRuck and the whole idea behind the project, it doesn't make sense financially