What size groveler board should I get??

Hello everyone I'm 5'8" 22 years young and weigh 145-150 pounds, I'm a new surfer that has a couple weeks under my belt. I have picked up surfing really fast (from my days skateboarding I guess, still very much a beginner though) and have tried out multiple boards (from a local shaper) and am set on a groveler type board. I haven't been able to ride a groveler type board yet though. I have tried out boards from anything between 9 & 7 foot longboard to a 6'3 shortboard with a steep rocker and was very narrow probably around 17.5 to 18 inches. volume was probably around 26ish. I have been able to stand up on all of them except the short technical board which I could only stand up on for a second or two then fall off it. The problem I was having with that technical board was the width (stability on popup) as everything else on the board was fine for me. So long story short the puddle jumper from lost is pretty much the board I want and I dont know what size I should get it in. Right now I'm looking at the puddle jumper in 6' and 6'2". which one should I get and why? I'm also open to getting a board In a smaller size if that's the best option. My only concern is that ill get too much volume (around 40+ in the 6'2" board) for me seeing as I have ridden a 26ish in volume and didn't really have too hard of a time. Everyone I have seen that ride groveler boards (reviews on them) have them around 5'9"ish so I was just wondering would 6'2" be too much board for my frame?? seeing how wide groveler boards are is that a preety average volume?? The waves here (central cali) are around 2-3 footers average getting up too 6-7 footers on really good days which are out of my league anyways.