IS 255 Attack still WEapon Cap?

I found something.

Infinite Slot's Method:

Can be work with Clean Slate or shield scrolls

Use a Clean slot on a Item I suggest 20% one with no boom effect aka GM clean slate

now use a 10% scroll on the item If it fails you will get 2 slot back

which means u lose a slot by failing so if the item is 7 slot after failing it should be 6 you'll end up with 8 slot

GMS has 255 Att limit chek maybe ems don't has it so go scroll your equip

And here is another thing Clean Slate can be exploited along with a map tele method

This was posted Jun 2012, so the limit was still there Jun 2012.
And HTPs produced with this glitch didn't exceed 255 all stat, but I can't seem to find any pics of those.