OP,
Apparently the SIG CS Rep doesn't know schit from shinola!
You do NOT need a punch or a press to remove or install a take down lever on a P230 or P232.
The slide catch & spring needs to be removed prior to removing the take down lever.
Slightly different than rotating the Take Down Lever on a Classic P series pistol.
The riveted per se thumb tab to slide block(230/232) will loosen up as any P series take down lever is capable of...since the thumb tab is NOT keyed to the block/pin on any SIG.
(I've precision TIG welded several to tighten the thumb tab to the block/pin of various SIG's)
Well now I have more questions.
1. Why does the slide catch and spring need to be removed? Is this because they'll probably fall out and it's best to avoid losing the the spring? Otherwise I don't see the reason; these parts don't interact with the takedown lever or slide stop block.
2. I have THREE takedown levers that look and micrometer as the same identical part. All three are used as that's all that is available. One is the one that came with and was removed from my P232. The other two came from Gunbroker and ebay. Not one of these takedown levers will fully seat in the slide stop block that came out of my pistol. The end of the shaft (that when installed is flush with the outer right side of the frame) will not even emerge from the right side of the slide stop block. It has another ~.25" to go and they just won't without tools and force. And yes, I know the flats on the inside of the block and on the shaft need to align. That's not the problem.
What are the odds that the two 'new' levers and my old lever are so out-of-spec that none of them will seat by hand?
I noticed that the Sig tech was able to get the takedown lever tight enough to allow him to rotate the slide stop block in the slide removal position by staking only a tiny round dot on the lever side. And it appears he used the same punch / staking tool on the end of the shaft on the right side to remove the takedown lever; there is an identical tiny 'stake' mark where he just used the same tool to drive it out. I doubt the sig tech would do that if it was easily removed by hand, per the P230 Armorer's manual.