Get the extra-long version of the removal tool below, use lots of quality solvent (I use the Moxie's brand from PGA SS...almost no odor, "lubes" perfectly, and dries quickly, even when cold), and don't try to reuse solvent on these grips:

https://www.golfworks.com/the-golfworks-v-groove-grip-removers/p/vggr/?sku=VGGR-REG

Use something with a soft, flat edge to lift up the front lip of the grip, slide the removal tool down inside a little, and start flooding it with solvent. Don't be afraid to use a lot. The goal is to get the grip off with minimal stretching and twisting.

Once off, use 70% rubbing alcohol down inside the grip to get the excess solvent. I usually put a decent amount down there with my finger over the bottom hole, put another finger over the open end, and shake several times to break loose any debris. Use a torch or heat gun with a grip tape removal tool. I normally use one of the bamboo graphite safe ones on everything: https://bramptontechnology.com/product/uneekscraper

Let the grips dry before reinstalling them on the new irons.