I actually do like this kind of in depth answers.. lol makes it easier to understand the whole concept.
I think I understood what you trying to say about the relationship between the length & pop
so according to your explanation, the difficulty I was facing of doing ollie may be just the lack of my leg strength plus the lack of experience. right?!
so in general, how fast the speed would justify the extra 5cm?? I'm asking becoz I doubt 95% of my riding would even go that fast to notice the "high-speed" chatter..
or maybe becoz I was riding a 156cm... so 99% time I would not even notice the chatter since it's so stable..
Ok - so the sizing thing one last time.
Burton had a general sizing chart for boards and I'm sure that the 135-155 weight class was good for an AMFS board 156cm. Everything else becomes preference.
Here's a couple links to sizing charts/recommendations etc.
Burton Custom Snowboard - Free Shipping! from Dogfunk.com
(click the "Sizing Chart" link on the product page)
Snowboard Sizing Guide, Size Calculator
Snowboard Length Calculator
some info for your knowledge hungry cranium
Things to Consider When Buying a Snowobard
The Custom is an All Mountain Freestyle Board (AMFS) - which is what you said you wanted. Anything smaller than a 154cm for your weight would be freestyle oriented IMO.
You said your 150lbs. I'm 5' 9/10" and 145lbs.
Here are the lengths of boards I'd use in the following situations
Freestlye - nothing shorter than 153cm (153/154cm)
AMFS - 156-158cm
Freeride/Back Country - 162cm - 165cm.
I won't even go near a 154cm for AMFS riding.
I've tried that size before and when I carve or go heavy into a turn or just try to traverse on a steep slope...the board washes out (b/c it can't support my weight plus the pressure/weight of the inertia going into the turn etc).
A few things go into my personal preferences - weight and experience. I'm riding at an advanced level as I've been doing this for almost a decade - so I'm used to applying pressure on the board, my edgework is solid so turning the board is no problem for me.
I have no problem shifting my weight to press the board (and ollie). It's not a struggle to bend the board in the least. I've ridden 157cm and 158cm boards and haven't had an issue with that. In fact the 156cm is starting to feel more of a freestyle board for me (but I think i'd still use a 154cm for a straight up freestyle board).
If you can nollie (nollie-ing came easier for me too when I first started) that means you can handle the stiffness of the board - you can bend it and pop off it. The Custom is a twin with directional flex (meaning the nose is actual stiffer than the tail on the Custom - but the shape of the board is a twin).
Personally i think the 151cm is gonna be hella small even for a freestyle board. A lot of jibsters and park guys wanna do the 151cm and swear by that size some even weigh more than I do. I would never do that...that's me though. (although I think I read somewhere that Shaun White rides a 152cm and he's the same weight/size as I am)
I think the 154cm/156cm are great for the All-Mountain riding which you said you bought the board for to begin with (considering your weight). You'll definitely appreciate the length of the board once you start learning how to carve (the edgework will help you in half-pipe when you're ready).
Here's a little tip to get you comfy with the ollie - Tail press - do this stationary: Try to squat down on your rear foot (almost like you're gonna sit down on the tail of the board). Grab the tail with the hand closest to the tail (tail grab) to exaggerate the motion and then begin to lift your front foot so the nose raises off the ground. See how high you can pick up the nose while maintaining your balance. When you think you've gotten the nose as high as you can release your hand from the grab and try to spring off your back foot as you begin to shift your weight back to be balanced and square over the board (you should be in the air while this is happening). Do that til you get comfortable with it. [I've got a silly tail press photo my friend took as we got off the lift from a couple weeks ago. I'll try to post it]
jmachpee9 makes some good points and it's cool that you're getting two different ppls perspectives...I def think the AMFS is the way to go as far as learning and progressing on a snowboard. Then when you're ready you can buy your freestyle stick...
I'm writing this on my lunch break so I'm sorry if this isn't really well thought out or organized and looooonng
P.S - I noticed the chatter when I was bombing down a dbl black (here in the NJ/PA mountains - which would be a Blue Square in any of the Tahoe Mtns haha). I don't think you're really gonna push the board like that for most of your riding though...I won't do that too often myself.