Due to request, I'm dumping my knowledge on how the r-hop and flat hop compare.
Both act very similarly, they both have extended contact with the bb. This extended contact is why they give such great range and accuracy over conventional hop ups. Given the right modifications, both hop ups can preform the same, it just takes a good bit of work either way.
To start off, the r-hop requires a set hop up, yes, set. Once you've put it in, your hop is set in place, you can tweak it just a little, but not very much. This hop was originally designed to hop .88 metal bbs, not the starch rounds that we use in normal every day airsofting. It takes careful tweaking to slowly increase the hop until it is perfect for your set up. Because of how it is designed, it cups the bb as it gives it hop. that cup effect is why KWA 2GX and PDI W Hold buckings are so good, that two points of contact allow for a more centered rotation, basically.
Now, with the flat hop, the original flat hop doesn't apply more than one point of contact, instead it relies simply on the fact that the bb has extended contact with the bb. To make it give similar effects, you must extend the hop up window so that the bb has a similar length of contact with the bucking as it would with the r-hop. Once that is done, you need to shape your flat nub into a cupped shape, so that it starts to give that two points of contact similar to the r-hop. It gets rather difficult to make a nub that sits flat and gives a straight even hop onto the bb, but it's just as hard to give the perfect amount of hop with the r-hop.
The advantage of r-hop is that it is built to move .88s, this means it does well with extremely high fps, and very, very heavy bbs. basically anything below .3s are impossible to use because it applies too much hop. Once the r-hop is set, you can only use those bbs, and only at that fps.
The Flat hop has the advantage of changing the hop, and allowing the use of different bbs instead of just one. It also means that if you change the fps in the gun, you can change the hop so that it still works well. The down side is that the bucking takes more wear, which means it doesn't last as long as the r-hop will last. but, this is still hundreds of thousands of rounds that it will last.
Any questions?
Hop ups
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Re: Hop ups
Just want to add Firefly to the KWA 2GX and PDI W as another of the same design, In fact the KWA 2GX hopup bucking is just a clone of the Firefly bucking.
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Re: Hop ups
Oh, yeah, forgot about firefly. They are kind of hard to find though.... I've only ever seen them in stock once, and that was only for a few days...
Re: Hop ups
I've been putting them in all of my primary guns for years. You just have to look around or time it right.
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[align=center]"Searching for my goats since 2009"
"All you have done here is take the typical leftist line and regurgitate it in a barely palatable,
quasi poetic, pseudo intellectual format. Quite frankly, that makes you a moron."[/align]
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Re: Hop ups
lol, I haven't been around long enough to have been doing anything for years.