Even if it seems unorthodox, so long as everything you're doing is possible based on what is present on a sheet, I see no issue with not being all-inclusive. Especially to limit metagaming. 

And clearly porting is generally frowned upon in combat, but to me it depends on how it is done. Some people explain it away as moving through a coterminous plane instead of outright sidestepping time and space. I dont [i]particularly[/i] mind it because I have ways of dealing with it, but I do believe its something best left reserved to high-tier. The smoother this can go the better.