Which type Extension do you think gives you the most Flexibility, most Practical, and best Re-sale Value on an Orchestral Bass. I have a 5-string conversion in the works and will have it done b4 I can get an Extension on one of my other Basses but I would like to set one up with an Ext. for the times I only want a 4-string in my hands. I also want to make it so the Bass has the most appeal to an Orchestral player for the best re-sale value. Your thoughts, experience and votes please. I hear that the Philly Orch. has about 50/50 Latched and Mechanical Extensions in the section.