I am considering some upgrades to my Shen Rogeri. It's my only DB and is used for jazz, classical and occasionally other types of music. I have been enamored with the deep, full sound of this bass since I first played it and plan on keeping it for a while, maybe for life. In the spirit on improvement I'm curious to see if I can get a little more out of the sound and playability of my bass, if possible, and would love to hear your recommendations on what to look for (or avoid/reconsider) in this department. Currently the bass has all stock hardware except the Full Circle I had installed on it. Here is what I've been thinking of upgrading: Tuners - I am not a fan of the stock tuners. If I had to upgrade only one thing it would be these. I'm looking for the highest quality here and also light weight as I'm considering a C extension down the road, and have considered the aluminum shaft Sloanes over the brass for weight reduction. Do Sloanes still reign supreme in the world of tuners or are there other ones worth considering? I've noticed offers by New Harmony and Jed Kriegel but have not been able to find much information on them. Pickup - Of the variety of pickups I've tried I have found the Full Circle the best option sonically for this bass. Aesthetically, however, it's not my favorite. I am thinking of having a single element Yamahiko installed. I like the options of cable placement on the pickup as well as removal, which would be nice for unamplified/classical gigs. Thoughts on the Yamahiko vs. FC? I have tried the Realist Lifeline and did not find it to my taste - too dark. Endpin - I've read that the lighter weight of a carbon fiber endpin can help improve the sound and resonance of some basses. Thoughts? Also, what brands of CF endpins should I consider? New Harmony seems like popular choice. Are there any others worth considering? Tailpiece - I am on the fence about considering a compensated tailpiece. One thing I'd like to improve a bit on my bass is the response of the low strings with the bow. If this might help, I'd consider it. Is there anything else worth looking at besides these things?