I'd definitely get the 6. I've used many sizes but I've settled on using 3 of the size 7 ball bearing swivels hooked together. IMO the bigger the better; tho when using smaller swivels i found that increasing the quantity helps, but at that point the issue of swivel weight is basically the same either way. Having said that, I’m actually purchasing a spin LT or more likely the magnetic slide rig (made by the same company) tonight as the swivels can be problematic for me on some level no matter the size or how many I use. I’ve made a few DIY magnetic spinning rigs of my own over the years (none of which were very sturdy, however) and I’ve decided that a magnetic spinning mechanism is best for me as there’s virtually no friction. But I tend to work with overly complicated builds with stacks of ribbon and multiple round cores, and their fragility is easily exploited by even the slightest amount of friction, especially when combined with my clumsiness.
Anyway, as you’ve probably noticed large sizes of quality ball bearing fishing swivels aren’t the cheapest thing in the world - a pack of 5 size 7 on Amazon can cost around $20 before shipping; whereas the Spin LT is $30 - I can't imagine shipping to your country would cost more than $10? I think the benefit of a quality tool like the spin LT might outweigh the added expense ...I think quality tools make all the difference in the world when it comes to construction of just about anything....
Sorry if this link has already been spammed in this thread, but just in case, the spin LT from USA Ohm Metres can be found here:
Looking for a super simple and compact coil jig to make your own coils? Can be mounted via screws (not included), clamp, or a vice.Features: Strong 3D Printed design 1 Metal Clevis Pin 1 Metal Triangle Ring 1 Red Bones Bearing
usaohmmeters.com
... And their magnetic slide rig looks amazing, but it ain't cheap:
NOW OFFERING (ONE OF) OUR NEWEST PRODUCT: SLIDE RIGLOOKING FOR A DUAL BEARING OR MAGNET SETUP TO ASSISTING IN PERFECTING YOUR COIL BUILDING? WE GOT YOU COVERED WITH OUR LATEST DESIGN OF THE SLIDE RIG. DESIGNED FOR EASE OF USE WITH THE ABILITY TO SWAP BETWEEN BEARING OR MAGNET SETUP IN THE...
usaohmmeters.com
I'm having a hard time deciding if the magnetic rig is worth it or if all I need is the spin LT...
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