I’m using the new smaller diameter twist grip as I’ve got a bit of a long term thumb injury which makes the larger one uncomfortable. The smaller one is better to hold on to, but offers less leverage for twisting.
I’m using Nokon cables with as few bends as possible. Even when brand new it’s hard to shift gear once my gloves are wet.
A row of cable ties with the ends staggered sounds like a good cheap fix. If you don’t cut the tails off dead flush, they can be a bit sharp. One trick I’ve seen is to flash over them with a blow lamp to round them off.
That Sugru looks good too. At £12 a pack,I’m trying to think of what else I could use it for before it’s 6 month expiry.
Looking again at the twistgrip now it’s dry, it is actually a bit tacky its self, it just doesn’t seem to retain it’s tackyness when wet.
I was thinking of maybe putting some deeper ribs across it with my hot melt glue gun.