Allright. Firstly sorry for my English, I'm not very good at speaking. Secondly, hello

I have a really big problem with NTSC brawl, with CSP to be accurate. When I'm trying to replace any of them, the game just freezes when i choose to Brawl.
I searched all over internet and it seemed that I had issues with file size. So i downloaded "Shadowkong" extracted CSP from it and tried to replace Link second costume with it. Well... it still freezes. I also tried to save it in other format (don't remember name now...) than C18. But notjing works.
I should also note that I'm using Wiiscruber and I tried several versions of brawlbox. I'm editing the game ISO itself, not using any riivolution stuff or anything. I tried replacing PAC and PCS files, also music files that way and it works fine, the only problem i've got is this irritaiting situation with CSP

I would really appreciate help. I hope I wrote this clearly. It's like 02:00 p.m here xD