It appears to be pretty much the same as the original perform jig, albeit with a few better options, ie the flat section to better support the router base without tipping, and different combs, but effectively its the exact same bit of kit.
They fling in the extra comb, which is usually about 50 quid itself, a few more basic cutters et all, but still seems a little pricey.
I've been using my perform one since 2003. It proved very popular, so much in fact they painted it white and added it to their 'trade' section. They changed nothing on it, just the paint job.
From the axminster 2015 cat' they have the excaliber/axminster one priced at £75, and interestingly the UJK one priced at £140. The UJK has the same double sided comb,router support bar and a full length extractor attachment and is pretty much identical to the offering today. Though I find it funny that they're showing it being drawn on cad when in fact its design is identical to the one 2015
a bit of bumpf there.
Today's prices have the original perform one £23 more than in 2015, but even taking the extra comb into consideration, the UJK has pretty much added an £100 to it's 2015 price.
In use the axminster perform one, and the UJK version its all down to fine adjustment of cutter depth, and for that its down to plenty of practice pieces and you will get it as tight as you need it to be. The vid showing gaps was a pretty dumb move by UJK, they could have fettled it tighter but decided not to, for whatever reason, maybe tried it in one take or simply couldn't be bothered.
But a fine adjuster is critical to perfect machine dovetails, and even a minuscule turn on the adjuster will make the world of a difference to the fit, taking into account water based glue will cause some swelling initially and dry perfect fit joints with be tight enough to split the edges of the joint if you dont get it glued up really really quickly.
You can do trenching and sliding joints on the original ax' perform by simply turning the single sided comb around. Its probably never been advertised as being capable of that simply because nobody noticed it could do those joints are the time
Depends on what you want, the jig when set up right will bash out dovetail jointed drawer boxes or similar at a rate no other tool can
Aidan
Never a truer word spoken.
This was one of my college pieces, and I only had 2 hours workshop time to do all the drawers. Including cutting fronts/sides and doing practice pieces. This is now 15 years old, holds a huge amount of my crud, and is invaluable to me for that. But all the joints are tight, and fine and nothings moved or come undone in that time. It's used multiple times daily.