Extending the snubber

[OneTwoSail]

I've got a 30 foot catamaran with a shallow draft, so I often anchor in shallow water. I used quite a short bridle/snubber last year (+- 5m a side), attached to the lower bows in the front and it worked well, although I never had to anchor in strong wind.

I'd like to use a longer snubber for when it's very windy, but when it's not it would drag on the ground and get worn. What I like about the attachment points for the bridle is that being off the front of the bows means there's absolutely no chafe, and with the bridle being attached about half a meter lower than the anchor roller, I get a slightly better angle on the anchor.

My thoughts for the future are to use a 5m nylon bridle, but then have another two 10m nylon lines with eyes on each end ready to go. In a big blow I would then extend the 5m lines with the 10 either using a soft/hard shackle or maybe luggage tagging them together by their eyes. Then I could let out more chain to match the new length, and have more stretch and another 10m of chain in the water.

Is there anything I'm not thinking about here? Any reason why it's not a workable idea?