Should i use a MH rod for deep cranks(14-15ft)? And also if i use a medium heavy and use shallow cranks would that affect anything? Looking for a cranking rod that will work with all depths. Thanks

I use a med hvy as a all around cranking rod and it works great, just make sure the lure ratings are right.

I would recommend getting the diawa tatula 7ft med heavy crankbait casting rod.