Very nice Jim! Here is one using MandelbrotMix4. pistols { ; Fractint Version 2099 Patchlevel 8 reset=2099 type=formula formulaname=mandelbrotmix4 function=ident center-mag=-0.90638923685619133/-0.00032765695465090/1.473253e+007/1.077\ 8/159.89846951135186/-0.79772922471833851 params=2.1000000000000001/6/0.10000000000000001/-1.8999999999999999/0/0 float=y maxiter=50000 inside=0 periodicity=10 colors=0005B_<3>5Jn5Lq5Nu5Px<3>5hc5mZ5rU5wP<4>5Zm5Ur5Px<3>5Ed5B`58W56R53\ M000000000b`c<4>lornru<9>YWPWUMVRI<3>OI5<3>YRD`TFbWH<3>kcPneRpgT<3>zpa<4\
jdWgaVcZT<3>ROPOLOKJN<2>AAK000000A3M<5>O9dQAgSBj<3>`Fw<3>J_cEdZAjU5oP<4\ 3SH2OF2JE<3>007000000000A00<4>O00Q00T00<3>c00<10>L00J00H00<3>A00000000U\ DG<4>h_9kc7nh6<3>zz0<3>mm5jj6gg7dd8``9YYA<3>RMEQJGOGHMDIKAJMAKOAM<3>_LKb\ OJeQJ<3>qaHtdGwfGziF<4>jWEgUEdRD<3>TGDQEDNBCK8C413000<3>EFAIIDLLG<4>ccWg\ fZkja<3>zyn<9>e`UcZSaWQ<3>UMH00000000053M<2>59X }
frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l }