I dont know your level of exp with spins/genniker but i would def play with the furling genniker if you have it already (till it shreds)... they are an awesome addition and the ability to furl it away quickly is very sweet. i can not tell you how frustrating it was to work out the kinks in dousing my spins and learn how to sail it.

can i ask why you want to go for a mid pole vs an end pole setup? i think with a foil... and in general i would go for a end pole version. for me i find it is good to have the basket/spin halyard far from the forestay to keep them from tangling in each other. esp if you have a furling jib. feel free to PM me if you have any other questions or would like to demo a 4way or spin setup. i am at the causeway almost every weekend.