Wery good upgrade.
I was putting this kit a side for a bit (scary project), but when i got started it was quite straight forward with good step by step instructions, total time ca. 2houre. This is also a good time to check all the berings on the mount. The mount sonds greate with the new belt mod. Did not need to chang eny of the driver settings in N.I.N.A, and i can now use N.I.N.A and my hand-controller at the same time if needed. The Bearing ring retainer rmovar tool is a must if you don't have special plyers.

Received very quickly in France (3 days).
Mounted and tested the day after receipt, greatly smoothed my guiding.
I recommend !

Just purchased the Rowan belt mod from first light optics to revive my old Neq 6 pro as the guiding has been getting progressively worse for the past 12 months.
Took me an afternoon to complete the mod and with a few YouTube videos and the instructions include I completed the upgrade.
I now just done the final step and adjusted the backlash on the worm carrier and on my first test under the stars got the the RMS error on both axis down to 0.60 and with a few tweaks to the balance and some adjustments in PHD I think I will improve those figures.

I am not very mechanical but after watching a few Youtube videos I felt capable to have a go. The results were very good and well worth the money.

While I had the mount apart I removed all the original grease, cleaned a few specs of flaking paint out as well. I was able to get many of the bearings via Amazon and replaced these while it was apart.

I have not really had the weather to test it yet but if the sound and smoothness of movement is a guide this really should be excellent. Learning how it all works has also made me more confident doing backlash adjustments as well and I now seem to have almost zero.

Bottom line is that this really is a no brainer.

My 15 year old NEQ6 has always sounded like a food blender with gravel in it, so I thought I would finally treat it to this upgrade. I didn't have any real difficulties in fitting the kit - once I got the mount stripped down. A couple of the original bolts needed penetrating oil and a gentle tap with an impact driver to get them out, which might be the biggest hurdle anyone doing this mod may have to overcome. I am no mechanic but the instructions are quite straightforward, though some patience is needed when fitting the dec motor back onto its new pulley block - I found it quite fiddly . If you have some circlip pliers you do not need the worm bearing extractor (I didn't buy it). Some long-handled Allen keys are also a help when working inside the case. The mount is now amazingly quiet when slewing (even at maximum speed) and is virtually silent when tracking. The upgrade is worth it just for this alone. I also fitted Rowan's zero backlash worm housing at the same time which (at a first test) has greatly improved the mount's guiding accuracy.

Fantastic piece of engineering. Supplied with all the hardware and instructions. Delivery from FLO was swift and packed very well, a great service

Excellent value
The order has been processed efficiently.
The service was efficient and prompt and the good value for standard components.
ALAIN