I wanted to post that yesterday but I see as today some people have similar thing in mind when posting in several places so:
Make the shield points dependable from the state of property instead of solid 60k.
How it works:
Claim Pole: after initial 8 hours, once revisited, starts gaining shield up to 5k. That's maximum for Claim Pole itself. (Regen 1k/h)
Village: Upgraded version of Claim pole with x3 multiplier
Palisade: Once area inside is closed, each square (with pali squares added) add 5 points of shield, up to 30k max (Max Regen 3*Wall_Length/h)(30k = almost 400 pali segments).
Brickwall: once area inside is closed, each square (with wall squares added) add 10 points of shield, up to 60k max. (Max Regen 5*Wall_Length/h)
Explanation:
Palisade and Brickwall closed spaces don't overlap each other. If there's pali inside a brick, brick covers only area up to pali, but not with pali itself. Same for reverse setup. if one segment is attacked, it regeneration and that part of shield stop regenerating.
Max Regen stands for days without siege. For a pali of 396 length, max regen is 1188 points of shield per hour. For a brick wall of same length, 1980 points/h.
Each time successful hour of siege, drops the regen of shield by 1 point for a real time day, max to 1. The idea behind it is to have a luxury of expanding siege of larger objects into longer periods of time, by having shield regen nerfed enough, to make it relative for sieging equipment to be build and used (minus for wrecking ball, only for RAMs and Catapult some buff required?) at same time having very small objects to be sieged very quickly.
Downside, hermits or casuals would have much more difficult live or generally people not living on larger land.
Upside, a lot quicker siege of very small safe palis, making brickwall great again, having some correlation between size of claim, type and size of wall. Having two palis or two brick walls having no effect and essientially enforcing brickwalls as mandatory wall to have maximum security, that at least in my imagination, would provide nearly exactly as any sized pali with a claim does now.