I have a customer who wants an irregular flagstone patio about 725 sqft in size. I am most comfortable installing a paver patio, but they are insisting on the flag. Is installing a flag patio going to entail much more cutting than the pavers? Also, are wide joints going to be a problem when using the polymeric sand or would I need to lay mortar on the base and use grout in the joints? I am figuring that getting the groundwork prep will be the same with the flag as it is with the pavers. Thanks for helping me fill in the blanks.