there are so many v-2s out there which is the best for a 3" maybe 4" diameter? im considering polecat aerospace's v-2 but its a bit pricey. i am also looking at loc's 4" v-2 and public enemy's 3'' and 4'' kits but i want to know what quality they are? are there any other v-2 kits in the 3'' to 4'' range?