After a little storme with a menger sponge i had to double my effort at fractal. My development end up extremely chaotic then i decide to shorten my formulation, and here the result, a superb mandel twist compatible with most of your mandel result. -- most attached file or result are positively balance at :https://sites.google.com/site/sinpix12823fractal/ start parameter file======================================= holding_the_sun1 { ; may5 reset=2004 type=formula formulafile=2012_4.frm formulaname=sin center-mag=-0.81126408010012560/-0.25567612687812970/133.3333 params=-4/-10/-1/-4 float=y inside=0 colors=000<3>000000000<2>000000222444<6>VVVZZZbbb0ffjjjnnnrrr0vvzzzywzxs\ zwmzvkz<3>qWy000R9ymKylGyzz0j8yhlxd4x`4xX3ST3y<3>D2y91y51y00z<8>``geeeii\ c<3>zzV<3>VzV<3>Vzz<2>Vbzhhz<3>zhz<3>zhh<3>zzhuzh<8>wZrxVsxSu<3>zFz<8>sJ\ QrJLrKH<3>nM0<3>wS0zU0zU0<7>vS3uS4uS4<3>rQ6<2>zU0<9>cPDaPEZOFXOHVNISMKSO\ KSQKSSK<2>MSKKSKKSMKSOKSQKSS<2>KMS00G<3>G0G<3>G00<3>GG0<3>0G0<3>0GG<2>04\ G88G<2>E8GG8GG8EG8CG8AG88<2>GE8GG8EG8CG8AG88G8<2>8GE8GG8EG8CG8AGBBG<2>FB\ GGBGGBFGBDGBCGBB<2>GFBGGBFGBDGBCGBBGB<2>BGFBGGBFGBDGBCG000<6>000 } frm:sin{;sinpix a=real(p1)+imag(p1) z=c=pixel: b=z^real(p2)+imag(p2)*c s=z^2+c z=s-b^a |z|<800 } end parameter file========================================